what is the result of 50% increased plasma volume versus 30% increased rbc volume during pregnancy? uworld

Answers

Answer 1

The total blood volume expands during pregnancy as a result of an increase in plasma volume and an increase in red blood cell (RBC) volume.

What causes the growth of red blood cells during pregnancy?

The different changes are biologically conceivable: red cell mass increases in proportion to the need to transport the extra oxygen taken up during pregnancy; the greater plasma volume increase is required to handle the extremely large increases in blood flow to organs that require little extra oxygen, such as the skin and kidneys.

What changes does the body go through throughout pregnancy?

Apart from just a developing bulge, a woman's body goes through a ton of changes throughout pregnancy. Her body must adapt to those changes, which requires a number of her organs to shift about the body and numerous other changes that frequently go unnoticed.

Learn more about kidney here:-

https://brainly.com/question/27345232

#SPJ4


Related Questions

You are driving down a street when you notice a house is on fire. A person who you
assume is the owner is sitting on the front lawn, although you cannot immediately tell if
the person is injured or just upset. Emergency medical services (EMS) personnel are not
on the scene-in fact, it appears that no one is even aware of the situation. You decide to
stop and help. What are the first basic steps you should take?

Answers

The first step you should take in the given situation is to call 911, so that emergency medical services (EMS) personnel will be informed.

There are some basic steps in providing first aid and they include the following;

Assess the situationPlan for intervention Implement first aidEvaluate the situation

For the given scenario, after assessing the situation, you will definitely notice that the situation is a critical one. The first step to take as untrained professional is to get help before approaching the scene.

You can help by calling 911 so that emergency medical services (EMS) personnel will be informed, after which you keep the person safe before the emergency team arrives.

Thus, we can conclude that the first step in the given situation is to call 911.

Learn more here:https://brainly.com/question/1821245

Answer:

911

Explanation:

the nursing student approaches his instructor to discuss the plan of care for his client diagnosed with peptic ulcer disease. the student asks what is the most common site for peptic ulcer formation? the instructor would state which one of the following?

Answers

The most common site for peptic ulcer formation is the duodenum. Peptic ulcers can also occur in the stomach or lower esophagus, but duodenal ulcers are the most common.


Which originally mandated the reporting of diagnosis codes on Medicare claims?

Answers

Answer:

learn to be smart, you idiot please stay in school.

Explanation:

Cmon man you have to do better

a nurse is working in a health clinic at a retirement community. what is the nurse's primary rationale for recommending hiv testing for older adults?\\

Answers

The primary rationale for recommending HIV testing for older adults is to ensure early detection and treatment of HIV infection, reducing long-term health risks and improving overall quality of life.

Additionally, HIV can increase the risk of other age-related illnesses, such as heart disease and stroke, so testing for HIV can provide a more comprehensive picture of an individual's overall health. It is important to note that although older adults are at a lower risk of contracting HIV than other age groups, they are still at risk. Therefore, it is recommended that individuals aged 55 and older receive regular HIV testing.

The nurse's primary rationale for recommending HIV testing for older adults is the rising incidence of HIV/AIDS among people aged 50 and over.HIV is an abbreviation for human immunodeficiency virus, a virus that attacks the immune system, making it unable to fight off infections and diseases. HIV is most commonly transmitted through sexual contact, shared needles or other injection equipment, and from mother to child during pregnancy, birth, or breastfeeding

The nurse's primary rationale for recommending HIV testing for older adults is the rising incidence of HIV/AIDS among people aged 50 and over. According to recent statistics, people aged 50 and over now account for over 17% of all new HIV diagnoses in the United States.AIDS and other chronic diseases, as well as increased sexual activity and/or substance abuse, may be factors that contribute to the rising incidence of HIV/AIDS among older adults.

HIV testing is now recommended for everyone aged 13 to 64 years old by the Centers for Disease Control and Prevention (CDC), including those who are healthy and have no signs or symptoms of HIV.

For more such questions on health

https://brainly.com/question/5496881

#SPJ11

Which statement best describes morphology

Answers

Morphology is the study of how things are put together, like the make-up of animals and plants,
Psychology Which statement best defines morphology? It is the study of the structure of words. It is the study of organization of sentences. It is the study of rules used to form sentences.

Which of the following statements is true about cord-blood banking? A. Cord-blood banking is inexpensive. B. Stem cells from cord blood can be used at any time throughout a person's life. C. Decisions about cord-blood banking can only be made after the baby is born. D. Cord-blood cells for a given child can only be stored in private banks.

Answers

Answer:

D

Explanation:

Cord-blood cells for a given child can only be stored in private banks.

After teaching a class on the female reproductive system, the nurse determines that the teaching was successful when the class identifies which action as the primary function of the ovaries

Answers

The primary function of the ovaries is to produce female gametes known as the eggs.

What are Ovaries?

The female gonad is the ovary. The lower left and right quadrants of the abdomen normally house the paired intraperitoneal endocrine organs, respectively. In addition to producing hormones, the ovaries are crucial for reproduction. Estrogen and progesterone are among the hormones secreted by the ovary's granulosa cells and theca cells. The follicles will develop in this location in the ovary during the proliferation phase. The oocyte will be released and start its journey via the fallopian tubes and into the uterus once the dominant follicle matures and luteinizing hormone surges. A temporary endocrine organ called the corpus luteum will replace the ovary and secrete significant levels of progesterone and lower amounts of inhibin A.

Learn more about Ovaries with the help of the given link:

https://brainly.com/question/14510872

#SPJ4

The number of people living with type 2 diabetes mellitus (T2DM) is high in Miami and the U.S. The Miami Department of Health reported that there were a total of 1.6 million cases as of May 2022. The Centers for Disease Control and Prevention reported the U.S. total for T2DM at 37 million cases. In June 2022, 200,000 Miami reported a new T2DM diagnosis. In the U.S., 1.5 million new cases were reported in this same month.
The total population of people living in Miami is 8.38 million. The total population of people living in the United States is 329.5 million people. Calculate the prevalence rate in the United States per thousand. Round to the nearest whole number.

Answers

Answer: 11

Explanation:

Prevalence rate = # cases in the sample / # of total people in the sample *100

When looking at the Prev. Rate for the U.S.  you need to identify the info specified above in the question

from your paragraph # of cases in sample of US = 37 million

from your paragraph # of people in US = 329.5 million

meaning that Prev. Rate = 37 million/329.5 million * 100

--> at this point, you can drop the million because both numbers have the same 'base'

so you are left with 37/329.5 *100

which is equal to 0.11229135053 *100

which = 11.229135053

rounded to the nearest whole = 11

To calculate the prevalence rate in the United States per thousand, we can use the formula:

Prevalence rate per thousand = (number of cases / total population) x 1000  

From the given information, the number of cases of T2DM in the U.S. is 37 million, and the total population is 329.5 million.  
Plugging these values into the formula, we get:  

Prevalence rate per thousand = (37,000,000 / 329,500,000) x 1000  Prevalence rate per thousand = 112.3  

Rounding to the nearest whole number, we get a prevalence rate of 112 per thousand in the U.S.

Therefore, the prevalence rate of T2DM in the United States per thousand is 112.

An optimal time to assess resting heart rate would be after you have _____. a. read in bed quietly for about half an hour b. performed flexibility exercises for about half an hour c. watched an action movie for about half an hour d. exercised vigorously for about half an hour e. walked at a moderate pace for no longer than an hour

Answers

Answer: A) Read in bed quietly after half an hour.

Answer:

read in bed quietly.

Explanation:

Order: 120 mg
Supply: 60 mg per tablet
How many tablets will be administered?

Answers

2 would be the amount you need to give all you have to do is add 60+60=120

a nurse at a provider's office is instructing a client who is scheduled for an outpatient barium swallow. which of the following statements by the client indicates an understanding of the teaching?

Answers

The client's statement indicating an understanding of the teaching regarding an outpatient barium swallow is "I understand that I will be asked to drink a liquid containing barium and that this will help the healthcare provider to see my digestive tract on an X-ray."


A barium swallow is a type of medical imaging test used to diagnose and monitor conditions of the esophagus, stomach, and upper gastrointestinal tract. During the procedure, a patient swallows a liquid containing barium, which coats the lining of the digestive tract and shows up on an X-ray. This helps the healthcare provider to identify any abnormal areas, such as inflammation or blockages.


It is important for the healthcare provider to ensure that the patient understands the procedure and is comfortable with it before proceeding. As such, the provider should explain the purpose and procedure of the barium swallow, and answer any questions the patient may have. The patient should also be given clear instructions on how to prepare for the swallow and any risks associated with the procedure.


By understanding the purpose of the barium swallow and the steps involved in the procedure, the patient is more likely to be able to fully participate in the procedure and have the best possible outcome. In this way, the patient's statement indicating understanding of the teaching is a key factor in the success of the procedure.

For more similar questions on healthcare provider

brainly.com/question/14632815

#SPJ11

Which one of the following statements is most accurate regarding the guidelines for supervision of a PTA or PT aide in a physical therapy setting?

Answers

The most accurate statement regarding the guidelines for supervision of a PTA or PT aide in a physical therapy setting is that PTAs must be supervised by a licensed physical therapist (PT) and PT aides must be supervised by a PT or a PTA.

The most accurate statement regarding the guidelines for supervision of a PTA or PT aide in a physical therapy setting is that PTAs must be supervised by a licensed physical therapist (PT) and PT aides must be supervised by a PT or a PTA. The level of supervision required varies based on state laws and regulations, as well as the complexity of the patient's condition and treatment plan. Generally, PTAs require direct supervision, meaning the PT must be physically present and available to give guidance and direction during the treatment session. PT aides may require indirect supervision, meaning the PT or PTA must be available by phone or other means of communication to answer questions or provide guidance as needed. It is important for the PT to establish clear expectations and guidelines for supervision to ensure patient safety and quality of care.

To know more about physical therapy visit: https://brainly.com/question/28816953

#SPJ11

How do electrolyes aid in the movement of water in and out of the body?

Answers

Answer:

through difussion

Explanation:

because there is dissociations of ions

In Florida, insurance is regulated by how many different parties?

a. 1
b. 2
c. 3
d. 4

Answers

Answer:

Assuming since this was posted in medicine that this is just for medical insurance. You are looking at 4 parties.

I also assume this question comes from a state-related review guide since this was a question on the study guide before. I remember getting this one correct. The answer is certainly 4.

Which tissue is found directly underneath epithelium?

Answers

Answer:

The basement membrane

Explanation:

The basement membranes is located directly underneath the epithelium I remember learning about it last year

Select the correct answer. Consider this equation. 2(x-2)-5=√x+3-1 Use the graph to find the approximate solutions to the equation.

Answers

From the graph, approximate solutions of the equations is, x = 3 and x = 6.

What is the solution of the equation?

The solution of an equation makes that equation true.

The equation of can be simplified thus:

2(x-2)-5=√x+3-1

2x -9 =√x+2

4 x²-37x + 79 = 0

The graphical solution of the equations is approximately x = 3 and x = 6

In conclusion, the solution of an equation make the equation true.

Learn more about solutions of an equation at: https://brainly.com/question/1214333

Select the correct answer. Consider this equation. 2(x-2)-5=x+3-1 Use the graph to find the approximate

when performing an assessment of the cleints reproductive system which dinding in the past medical hsotry indicates

Answers

When performing an assessment of the client's reproductive system, a thorough review of their past medical history is essential.

The medical history can provide valuable information regarding any previous surgeries or medical conditions that could affect the reproductive system. For example, women who have had a hysterectomy may have issues with their ovaries or hormonal balance, which could impact their reproductive health.
Additionally, a history of sexually transmitted infections (STIs) can have long-term consequences for both men and women. STIs like chlamydia, gonorrhea, and HPV can cause infertility, pelvic inflammatory disease, and cervical cancer. A client's history of STIs should be considered when evaluating their reproductive system.
Other factors to consider include medication use, chronic medical conditions like diabetes or hypertension, and family history of reproductive disorders. For example, certain medications, such as chemotherapy drugs, can damage reproductive organs and affect fertility. Similarly, a family history of conditions like endometriosis or polycystic ovary syndrome may indicate a higher risk for these conditions in the client.
In conclusion, the past medical history can provide valuable insights into a client's reproductive health and help guide a thorough assessment of their reproductive system. It is essential to obtain a detailed medical history to ensure comprehensive and effective medical care.

To know more about reproductive system visit:

brainly.com/question/30308830

#SPJ11

Select the correct answer. Ricardo is a healthcare professional. His wife has just delivered a baby and he would like to spend a few weeks at home with his family. What are his options? A. avail paid leave under the Family and Medical Leave Act B. avail unpaid leave under the Family and Medical Leave Act C. avail paid leave under the Fair Labor Standards Act D. avail unpaid leave under the Fair Labor Standards Act

Answers

The Options that Ricardo has to select from are :

( B ) avail unpaid leave under the Family and Medical Leave Act ( D ) avail unpaid leave under the Fair Labor Standards Act

The leave options

The family and Medical leave act is a law that was set up by the U.S federal government that allows employees to take up to 12 weeks of unpaid leave from work while their job remains protected to enable them attend to family and medical situations.

The Fair labor standards act is a law established by the U.S. Federal government, to regulate payment for labor and make the payment practices fair for employees.

Hence we can conclude that The Options that Ricardo has to select from are : avail unpaid leave under the Family and Medical Leave Act and avail unpaid leave under the Fair Labor Standards Act.

Learn more about fair labor standards act : https://brainly.com/question/499564

#SPJ1

a 45-year-old man presents with episodic attacks of headache, recurring bouts of palpitations, anxiety, and sweating. he also gives history of a severe attack 1 week ago while he was having wine and cheese with his wife. on further questioning, he comments that he gets lightheaded when he stands up too rapidly. he comments that his mother had similar problems. on physical examination, his blood pressure is 165/90 mm hg and his heart rate is 80/min. a 24-hour collection of his urine tests positive for vanillylmandelic acid. imaging studies showed bilateral adrenal medullary hyperplasia. further workup showed hypercalcemia, hypophosphatemia, and increased parathyroid hormone levels.

Answers

According to the information given, the patient should be screened for medullary carcinoma of the thyroid.

Explanation: The patient displays the pheochromocytoma symptoms and indicators. Pheochromocytoma can cause orthostatic hypotension. He experiences paroxysmal episodes and hypertension. His paroxysms are brought on by the pheochromocytoma's intermittent release of catecholamines. Pheochromocytoma frequently contains urinary vanillylmandelic acid (VMA), a byproduct of catecholamines. This supports the presence of multiple endocrine neoplasia type II (Sipple's syndrome), a rare autosomal dominantly inherited condition. The patient also exhibits test evidence of hyperparathyroidism with hypercalcemia, hypophosphatemia, and elevated parathyroid hormone levels.

Pheochromocytoma, thyroid medullary cancer, and primary hyperthyroidism or parathyroid hyperplasia are the hallmarks of MEN type II. Additionally, a thyroid medullary cancer screening for this patient is recommended.

To know more about cancer screening visit,

https://brainly.com/question/20478669

#SPJ4

2. Which human activity would help reduce the amount of carbon dioxide in the

atmosphere?

a. decrease the buming of fossil fuels

b. decrease the number of recycling programs

c. increase the human population d increase the number of cars being driven

Answers

A. decrease the burning of fossil fuels

2. Which of the following features make
online pharmacies an appealing option to
patients?
O A. Avoiding sales tax
B. Being able to develop a personal
relationship with the pharmacist
O C. Privacy and convenience
D. Wider selection of brand-name
medications to choose from

Answers

The online pharmacy store offers   Privacy and convenience. Option C

What is an online pharmacy store?

We know that an online pharmacy store is the kind of pharmacy store where there is no physical contact between the pharmacist and the person that wants to purchase the drugs. In other words, the person that is buying the drugs only needs to meet with the store electronically.

This would offer a good convenience and privacy to the kind of patients that does not want to be seen or known due to the peculiarity of the kind of drugs that they are buying.

Learn more about buying drugs:https://brainly.com/question/29267870

#SPJ1

You have finally persuaded the 8 yr old patient to have impressions taken. When seating the maxillary tray she starts to gag. describe some technique you could use to make the procedure a positive experience to the patient

Answers

Answer: Hope this helps you!

Explanation: I would tell them that first, it's going to be okay, then I would explain what's going to happen, kids like it a little better whenever you explain things and then it happens, plus you could always offer a toy of some sort or even candy.

A case study allows a more detailed look at the life of a single subject than any other study.

Answers

Answer:

true

Explanation:

edg

3. Which abbreviation stands for a type of blood collection vacuum tube?​

Answers

The abbreviation EDTA stands for a type of blood collection vacuum tube.

What is EDTA?

EDTA is a chelating agent that binds to calcium ions, which prevents the blood from clotting. This allows the blood to be collected and transported without clotting, which is important for many laboratory tests.

EDTA is the most common type of blood collection tube used in clinical laboratories. It is used to collect blood for a variety of tests, including complete blood counts, chemistry tests, and blood cultures.

EDTA blood collection tubes are typically lavender in color. They are labeled with the abbreviation "EDTA" and the volume of blood that is required for the test.

Find out more on vacuum tube here: https://brainly.com/question/31264061

#SPJ1

fluid overload and decreased tissue perfusion result when the heart cannot generate cardiac output (co) sufficient to meet the body's demands for oxygen and nutrients. group of answer choices a. true b. false

Answers

The given statement "Fluid overload and decreased tissue perfusion result when the heart cannot generate cardiac output (CO) sufficient to meet the body's demands for oxygen and nutrients." is true because when the demands of the body are not met it leads to a fluid overload.

Cardiac output or the CO is basically the product of the stroke volume and heart rate. When the the cardiac output is not sufficient in order to meet the demands of the body then it causes an increase in the fluid volume and also a decrease in the tissue perfusion.

Hypervolemia, which is known as fluid overload, is basically a type of condition in which a have too much fluid volume present in our body. Inadequate amount of tissue perfusion basically results in the decreased levels of cellular oxygen tension as well as the disruption of normal oxidative phosphorylation and there is also a decrease in the generation of ATP.

To know more about fluid overload

https://brainly.com/question/28478304

#SPJ4

A patient comes into the pharmacy complaining of a sore throat, cough, and sneezing. which of the following might the patient be suffering from?

A: Common Cold
B: Allergic rhinitis
C: Pneumonia
D: Sinusitis
E: More than one of the above choices

Answers

The patient might be suffering from the Common Cold.

The symptoms of a sore throat, cough, and sneezing are commonly associated with the Common Cold. The common cold is a viral infection that affects the upper respiratory tract, causing symptoms such as nasal congestion, runny nose, sore throat, cough, and sneezing. It is usually a mild and self-limiting condition that resolves on its own within a week or two. Treatment primarily focuses on relieving symptoms through rest, hydration, over-the-counter medications for pain relief and congestion, and home remedies such as warm liquids and saltwater gargles. If symptoms worsen or persist, it is advisable to consult a healthcare professional for further evaluation and guidance.

Learn more about respiratory tract here

brainly.com/question/31875140

#SPJ11

Dr. Penningworth asks Mr. Raines how long he has struggled with his addiction to alcohol. Mr. Raines informs him that he has had a drinking problem since he was 18, for more than 28 years. Does this strengthen or weaken your suggestion regarding Susan's response to Dr. Penningworth in the preceding question?

Answers

Answer:

Mr. Raines statement strengthens the suggestions made by by the Dr. Penningworth.

Explanation:

Dr. Penningworth identifies that Mr.Raines has been suffering from liver failure but he has no idea what has led him to this disease as he had no earlier symptoms. Mr.Raines informs the doctor that he has been drinking alcohol since very early age. He started intake of alcohol when he was 18 and then his liver got infected with the disease.

Psychology
An example of a hidden variable would be:
A. hindsight bias.
B. infants drink more milk than adults.
C. bald people who wear diapers tend to cry more often than other
people.
D. teens usually get their licenses at 16.

Answers

D would be right mark Brainly ist
The answer will be Option C ( bald people who wear diapers tend to cry more often than other) as it’s an emotional thing for someone who’s bald and wearing diapers.. and mental health or emotions are all related to psychology

One of the main functions of tcells is to

Answers

Answer:

Explanation:

producing cytokinesregulating immune response killing infected host cells

the combining form that means cause (of disease) is

Answers

The combining form that means "cause (of disease)" is etiology.

The term "etiology" is a noun form that denotes the study of causes of diseases.

Etiology refers to the study of the causes of diseases. It encompasses the factors that lead to the development of a disease, including genetic, environmental, social, and behavioral factors. Etiology has a crucial role in the diagnosis and treatment of diseases.

It is fundamental in identifying risk factors that can be modified or managed to prevent disease and promote good health. Etiology is also important in the development of new treatments and therapies for diseases.

The combining form eti/o derives from the Greek word aitia, which means "cause." Eti/o is a common prefix used in medical terminology. Other terms that use the eti/o prefix include etiology (the study of the causes of diseases), etiopathogenesis (the study of the causes and development of diseases), and etiologic agent (the cause of a disease).

Thus, the combining form that means "cause (of disease)" is eti/o.

Learn more about : etiology

https://brainly.com/question/30397881

#SPJ11

Other Questions
Which of the following is true about the Topaz internment camp?OPrisoners were paid a small fee for work.O Prisoners were allowed to leave for work.O Prisoners were primarily women.OPrisoners were unable to permanently leave.O Prisoners were executed by the guards.. What causes settlers to migrate to Siberia Matteo buys 3&1/4 pounds of ice cream. He puts 3/6in a bowl. Which of thefollowing expressions can be used to find the number of pounds of icecream that Matteo put in a bowl?A. 3/6 x 13/4B. 3/6 x 3/4C. 3/6 + 3/6 + 3/6 + 1/4D. (3/6 x 3) + (3/6 x 1/4)E. 3&1/4 - 3/6 What is the charge of an electron?A. Not enough infoB. NegativeC. NeutralD. Positive 1. List five different ways of being in touch with people nowadays2. List five barriers to the interaction and communication between people?3. Are social networks inclusive or exclusive ways of interacting with people? Answer to this question using about 100 words (about 15 lines) The nurse is caring for a patient two days after the patient experienced a myocardial infarction. for which complications will the nurse monitor the patient? Ms. baker needs 20 pounds of deli meat to make sandwich trays for a party. she bought 4.86 pounds of turkey and 6 1/3 pounds of ham. how many more pounds of deli meat ms. baker needs? What is the value of x?4/5-1/10=3/10 Which example shows a learned and an inherited behavior of a dog? (2 points) aBarking at a stranger and sitting for a treat bBarking to communicate and breathing cHibernation and migration dRolling over and fetching a ball Write equations for the horizontal and vertical lines passing through the point (1,6) . Find the length of the given curve:r(t)=(?3t,2sint,2cost) where ?3?t?3. match each description with the correct type of point mutation. a. changes a codon for one amino acid into a different codon for the same amino acid. (click to select) b. one or a few base pairs are replaced by different base pairs. (click to select) c. one or a few base pairs are lost. (click to select) d. changes a codon for one amino acid into a codon for a different amino acid. (click to select) e. changes a codon for one amino acid into a stop codon. (click to select) f. an addition or deletion that alters the codons downstream from the mutation. (click to select) g. this type of mutation causes huntington's disease and has only been observed in humans and mice. (click to select) h. one or a few base pairs are gained. (click to select) i. an addition or deletion that alters the codons upstream from the mutation. (click to select) You discover a new species of fish that are normally gray and have round eyes. Mutations in the black gene cause the fish to be black in color. Mutations in the star gene cause the fish to have star shaped eyes. b (mutant black allele) s (mutant star allele) b (normal black allele) s (normal star allele) You want to map the location of black gene relative to the star gene. These two genes are on the same chromosome. You cross these two fish: Are CDs offered at variable rates?. The op amp in the circuit shown in the figure is ideal. (Figure 1)a. Calculate vo when vg equals 3.9 V .b. Find the minimum value of vg so that the op amp operates in a linear mode.c. Find the maximum value of vg so that the op amp operates in a linear mode.d. Assume that vg equals 2 V and that the 63 k resistor is replaced with a variable resistor. What value of the variable resistor will cause the op amp to saturate? george has a car accident with lijuan in new mexico, where both of them reside. new mexico is a comparative negligence jurisdiction. george is 60% at fault, and lijuan is 40% at fault, according to the jury. his damages amount to $100,000, according to the jury's calculations. what, if anything, will he recover? the structure of the genetic material refers to the folding that allows it to be packed into the confined space of a cell. please choose the correct answer from the following choices, and then select the submit answer button. answer choices quaternary primary secondary tertiary How can I translate this sentence to german? The sentence is She said that when she was a kid she was on fishing with her dad. The sentence has to star with Sie hat gesagt,dass. I need help seriously because tomorrow we are going to get evaluated. Andrea needs 5 more feet of yarn to complete her art project. which line plot shows the lengths of 10 different pieces of yarn, measured in feet, which will provide the exact amount of yarn andrea needs Question 15 (1 point)Presidential power has expanded greatlyA. during wartimeB. in times of national crisisC. when a popular President is in officeD. when Congress votes the President more power