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 B
Explanation
“Placenta.” The placenta is the structure that provides oxygen and nutrients to the growing fetus and removes waste products from the fetus’s blood.
Choice A is incorrect because the umbilical arteries carry deoxygenated blood and waste products from the fetus to the placenta.
Choice C is incorrect because amniotic fluid provides a cushion for the fetus and helps maintain a constant temperature in the uterus but does not provide nutrition.
Choice D is incorrect because the decidua is the lining of the uterus during pregnancy and does not provide nutrition to the fetus.
Correct Answer is C
Explanation
A complete fracture is when the bone breaks into two or more separate pieces.
This is in contrast to an incomplete fracture, where the bone is only partially broken.
A spiral fracture is a type of complete fracture that occurs when a long bone is twisted with force.
A greenstick fracture is a type of incomplete fracture that occurs when a bone bends and cracks but does not break completely.

Choice A, Spiral, is incorrect because it refers to a specific type of complete fracture that occurs when a long bone is twisted with force.
Choice B, Incomplete, is incorrect because it refers to a type of fracture where the bone is only partially broken.
Choice D, Greenstick, is incorrect because it refers to a specific type of incomplete fracture that occurs when a bone bends and cracks but does not break completely.
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