Week 1 Quiz
1. A 12-year-old male is diagnosed with Klinefelter syndrome. His karyotype would reveal
which of the following?
Correct Answer: a. XXY
2. The nurse is teaching staff about the most common cause of Down syndrome. What is
the nurse describing?
Correct Answer: a. Maternal nondisjunction
3. A nurse is discussing the movement of fluid across the arterial end of capillary
membranes into the interstitial fluid surrounding the capillary. Which process of fluid movement
is the nurse describing?
Correct Answer: a. Hydrostatic pressure
4. What principle should the nurse remember when trying to distinguish aging from
disease?
Correct Answer: a. It is difficult to tell the difference because both processes are believed to
result from cell injury.
5. What causes the rapid change in the resting membrane potential that initiates an action
potential?
Correct Answer: a. Sodium gates open, and sodium rushes into the cell, changing the
membrane potential from negative to positive.
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, 6. During childhood, the thymus decreases in size, and this is referred to as _____ atrophy.
Correct Answer: a. Physiologic
7. Sodium and water accumulation in an injured cell are a direct result of:
Correct Answer: a. Decreased ATP production
8. A 50-year-old male was recently diagnosed with Huntington disease. Transmission of
this disease is associated with:
Correct Answer: a. Delayed age of onset
9. What is the diagnosis of a 13-year-old female who has a karyotype that reveals an absent
homologous X chromosome with only a single X chromosome? Her features include a short
stature, widely spaced nipples, reduced carrying angle at the elbow, and sparse body hair.
Correct Answer: a. Turner Syndrome
10. What is the role of cytokines in cell production?
Correct Answer: a. Provide growth factor for tissue growth and development
11. A eukaryotic cell is undergoing DNA replication. In which region of the cell would most
of the genetic information be contained?
Correct Answer: a. Nucleolus
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