(2025/2026) | Actual Exam | Questions &
correct Answers - Walden University
A runner has depleted all the oxygen available for muscle energy. Which of the following will
facilitate his continued muscle performance?
Answer: Anaerobic glycolysis
What causes the rapid change in the resting membrane potential that initiates an action potential?
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: XXY
A nurse is reviewing the pedigree chart. When checking for a proband, what is the nurse looking
for?
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: Expressivity
, NURS 6501 Advanced Pathophysiology Quiz 1
(2025/2026) | Actual Exam | Questions &
correct Answers - Walden University
In teaching a patient with cirrhosis, which information should the nurse include regarding
cholesterol?
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: Gene imprinting
When a patient asks what causes cystic fibrosis, how should the nurse respond? Cystic fibrosis is
caused by an _____ gene
Answer: Autosomal recessive
How are potassium and sodium transported across plasma membranes?
Answer: By adenosine triphosphate enzyme (ATPase)
The nurse would be correct in identifying the predominant extracellular cation as:
Answer: Sodium
The early dilation (swelling) of the cell's endoplasmic reticulum results in: