Advanced Pathophysiology Quiz 1 (UPDATED WITH A+ GUARANTEED)

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?