The nursing instructor is preparing to illustrate the various changes between the nonpregnant and pregnant female bodies.
The instructor should point out that the blood volume in the pregnant woman can increase by what percentage?
20% to 25%.
40% to 45%.
50% to 55%.
30% to 35%.
The Correct Answer is B
Blood volume increases significantly within the first few weeks of gestation and increases progressively throughout the pregnancy.
The total blood volume increase varies from 20% to 100% above prepregnancy levels, usually close to 45%1.
Choice A is incorrect because the increase is usually close to 45%, not 20% to 25%.
Choice C is incorrect because the increase is usually close to 45%, not 50% to 55%.
Choice D is incorrect because the increase is usually close to 45%, not 30% to 35%.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
Muscular dystrophies are disorders associated with progressive degeneration of muscles, resulting in relentless and increasing weakness.
This is a general description of muscular dystrophy, a group of genetic diseases that affect different types of muscles and cause various degrees of disability.
Children with muscular dystrophy may experience frequent falls, difficulty walking or running, muscle pain, learning difficulties, and breathing problems.
There is no cure for muscular dystrophy, but treatments can help manage symptoms and slow down the progression of the disease.
Choice B.
The extent of degeneration depends on performing daily physical therapy is incorrect, as physical therapy cannot prevent or reverse the degeneration of muscles caused by muscular dystrophy.
Physical therapy can help maintain muscle strength and flexibility, prevent contractures and deformities, and improve mobility and function.
Choice C.
The child will be able to function normally and require no special accommodations is incorrect, as muscular dystrophy affects the child’s ability to perform daily activities and may require assistive devices, such as braces, wheelchairs, or ventilators.
The child may also need special education services, occupational therapy, speech therapy, or psychological counseling to cope with the disease.
Choice D.
The weakness that the child is currently experiencing will probably not increase incorrectly, as muscular dystrophy is a progressive disease that causes muscle weakness to worsen over time.
The rate and severity of progression may vary depending on the type and subtype of muscular dystrophy.
Therefore, choice A is the best answer to this question.
Correct Answer is A
Explanation
This is a variation of the side-lying position, which is recommended for pregnant women in the third trimester to improve blood flow to the uterus and the baby12.

Sleeping on the right side with a pillow under the hip can also help relieve pressure on the inferior vena cava, a large vein that carries blood from the lower body to the heart.
Sleeping on the back can cause lightheadedness and dizziness because of this pressure, as well as increase the risk of stillbirth1.
Choice B.
Without a pillow is incorrect, as this can make sleeping on the side uncomfortable and cause back pain or leg cramps.
Choice C.
with a pillow under her shoulders is incorrect, as this can elevate the upper body and worsen heartburn, a common problem in pregnancy.
Choice D.
with a pillow under both hips is incorrect, as this can make sleeping on the back more likely, which is not advised for pregnant women in the third trimester1.
Therefore, choice A is the best answer.
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