University
A runner has depleted all the oxygen available for muscle energy. Which of the
following will facilitate his continued muscle performance? - answer-Answer: Anaerobic
glycolysis
What causes the rapid change in the resting membrane potential that initiates an action
potential? - answer-Answer: Sodium gates open, and sodium rushes into the cell,
changing the membrane potential from negative to positive.
A 12-year-old male is diagnosed with Klinefelter syndrome. His karyotype would reveal
which of the following? - answer-Answer: XXY
A nurse is reviewing the pedigree chart. When checking for a proband, what is the
nurse looking for? - answer-Answer: The person who is first diagnosed with a genetic
disease
An aide asks the nurse why people who have neurofibromatosis will show varying
degrees of the disease. Which genetic principle should the nurse explain to the aide? -
answer-Answer: Expressivity
In teaching a patient with cirrhosis, which information should the nurse include
regarding cholesterol? - answer-Answer: Cholesterol decreases the membrane fluidity
of the erythrocyte, which reduces its ability to carry oxygen.
A 15-year-old female is diagnosed with Prader-Willi syndrome. This condition is an
example of: - answer-Answer: Gene imprinting
When a patient asks what causes cystic fibrosis, how should the nurse respond? Cystic
fibrosis is caused by an _____ gene - answer-Answer: Autosomal recessive
How are potassium and sodium transported across plasma membranes? - answer-
Answer: By adenosine triphosphate enzyme (ATPase)
The nurse would be correct in identifying the predominant extracellular cation as: -
answer-Answer: Sodium
The early dilation (swelling) of the cell's endoplasmic reticulum results in: - answer-
Answer: Reduced protein synthesis