Test with Complete Solutions
1. A runner has depleted all the oxygen available for Answer: Anaerobic gly-
muscle energy. Which of the following will facili- colysis
tate his continued muscle performance?
2. What causes the rapid change in the resting mem- Answer: Sodium gates
brane potential that initiates an action potential? open, and sodium rush-
es into the cell, chang-
ing the membrane po-
tential from negative to
positive.
3. A 12-year-old male is diagnosed with Klinefelter Answer: XXY
syndrome. His karyotype would reveal which of
the following?
4. A nurse is reviewing the pedigree chart. When Answer: The person
checking for a proband, what is the nurse looking who is first diagnosed
for? with a genetic disease
5. An aide asks the nurse why people who have Answer: Expressivity
neurofibromatosis will show varying degrees of
the disease. Which genetic principle should the
nurse explain to the aide?
6. In teaching a patient with cirrhosis, which infor- Answer: Cholesterol
mation should the nurse include regarding cho- decreases the mem-
lesterol? brane fluidity of the
erythrocyte, which re-
duces its ability to carry
oxygen.
7. A 15-year-old female is diagnosed with Prad- Answer: Gene imprint-
er-Willi syndrome. This condition is an example ing
of:
8. When a patient asks what causes cystic fibrosis, Answer: Autosomal re-
how should the nurse respond? Cystic fibrosis is cessive
caused by an gene
9.
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