After birth, an infant's cardiovascular system changes by constricting the ductus arteriosus. Once this closes,
a. there is an immediate decrease in systemic vascular resistance.
b. blood can bypass the lungs by moving from the pulmonary trunk directly into the aorta.
c. there is a decrease in pulmonary vascular resistance.
d. it becomes a fibrous cord embedded in the wall of the heart.
c
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The American Academy of Professional Coders has separate examinations and certifications for physician and hospital services
a True b False
Vitamin K plays an important role in:
A) combating depression B) the retina of the eye C) rheumatitis D) blood clotting
As the brownout phase of _______________ begins, early enthusiasm and energy give way to chronic fatigue and irritability.
Fill in the blank(s) with the appropriate word(s).
The cumulative effects of such low radiation doses are called _________ effects, and are primarily associated with the induction of cancer and genetic malformations
A) stochastic B) short-term C) deterministic D) somatic