What is the reason for vascular volume increasing by 40% to 60% during pregnancy?
a. Prevents maternal and fetal dehydration
b. Eliminates metabolic wastes of the mother
c. Provides adequate perfusion of the placenta
d. Compensates for decreased renal plasma flow
ANS: C
The primary function of increased vascular volume is to transport oxygen and nutrients to the fetus via the placenta. Preventing maternal and fetal dehydration is not the primary reason for the increase in volume. Assisting with pulling metabolic wastes from the fetus for maternal excretion is one purpose of the increased vascular volume. Renal plasma flow increases during pregnancy.
You might also like to view...
The student nurse is planning care for a patient who believes that Western medicine is effective but not always accurate. Nursing theory would best explain the patient's health practices?
a. Nursing: Human Science and Human Care b. Cultural Care Theory c. Human-to-Human Relationship Model d. Five Caring Processes
For the nurse to effectively and legally delegate, which document must be consulted and followed to reduce the likelihood of liability?
1. The American Nurses Association Bylaws 2. The National Council of State Boards of Nursing 3. The regulations of the state nurse practice acts 4. The rules of the governing specialty organization
The physician has ordered a unit of 250 mL packed red blood cells to infuse over 4 hours with a drop factor of 10 gtt/mL. What is the correct IV flow rate in mL/hr?
A) 10 B) 11 C) 62 D) 63
Which statement is accurate regarding ethanol as an antiseptic?
a. Ethanol is an effective disinfectant and antiseptic. b. Ethanol is especially effective on open wounds. c. Ethanol foam can be used to provide extended exposure of the skin. d. A 90% concentration of ethanol is more active than a 70% concentration.