Nokea
Which is a 5HT-receptor agonist?
- A. Ondansetron
- B. Ketanserine
- C. Sumatriptan
- D. Risperidone
Correct Answer: C
Rationale: Sumatriptan is a 5-HT1D agonist used in migraine.
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A nurse is caring for a client who is taking Propylthiouracil. For which of the following adverse effects of this medication should the nurse should be correct
- A. Bradycardia
- B. Insomnia
- C. Heat intolerance
- D. Weight loss
Correct Answer: A
Rationale: Propylthiouracil can cause bradycardia as a rare side effect, requiring monitoring.
Which of the following are well-perfused tissues?
- A. Brain
- B. Skeletal
- C. Bone
- D. Adipose
Correct Answer: A
Rationale: The brain is a well-perfused tissue due to its high blood flow, unlike skeletal muscle (moderate), bone (low), and adipose (poorly perfused).
Which statement about clonidine is false
- A. Useful in the management of opiate withdrawal syndrome
- B. Claimed to have prophylactic value in migraine
- C. It is alpha-2 receptor stimulant
- D. It is safe on abrupt termination of treatment
Correct Answer: D
Rationale: Abrupt clonidine withdrawal can cause rebound hypertension.
Which of the following is a stimulative mechanism of insulin secretion:
- A. Hyperglicemia and decrease of intracellular ATP
- B. Increase of intracellular ATP and opening of ATP-depended K+ channels
- C. Increase of intracellular ATP and closure of ATP-depended K+ channels
- D. Closure of potential depended Ca+2 channels
Correct Answer: C
Rationale: Insulin secretion is stimulated by increased ATP closing K+ channels, depolarizing beta cells and opening Ca2+ channels.
A 32-year-old woman is admitted to the unit with a diagnosis of hypovolemia. The nurse is developing a care plan for this patient. What is an appropriate nursing diagnosis to help prevent medication errors?
- A. Dysfunctional gastrointestinal motility
- B. Ineffective self-health maintenance
- C. Risk for injury
- D. Deficient fluid volume
Correct Answer: C
Rationale: Hypovolemia increases risk for injury from medication errors (e.g., overdose effects).