Nokea
The reason that two MMR vaccines at least a month apart are recommended is:
- A. The second dose of MMR 'boosts' the immunity built from the first dose
- B. Two vaccines 1 month apart is the standard dosing for all live virus vaccines
- C. If the two MMR vaccine doses are given too close together there is a greater likelihood of severe localized reaction to the vaccine
- D. Only 95% of patients are fully immunized for measles after the first vaccine, with 99% having immunity after two doses of MMR
Correct Answer: D
Rationale: Two MMR doses ensure 99% immunity, as 95% respond to one dose; boosting is secondary to this goal.
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Oral iron supplements are prescribed for a 6 year-old child with iron deficiency anemia. The nurse instructs the mother to administer the iron with which best food item?
- A. Milk
- B. Water
- C. Apple juice
- D. Orange juice
Correct Answer: D
Rationale: Vitamin C increases the absorption of iron by the body. The mother should be instructed to administer the medication with a citrus fruit or a juice that is high in vitamin C. Milk may affect absorption of the iron. Water will not assist in absorption. Orange juice contains a greater amount of vitamin C than apple juice.
A nurse is reviewing the order for a medication. Which of the following must be included?
- A. Client's name
- B. Drug name
- C. Dosage form
- D. All the above
Correct Answer: D
Rationale: A primary health care provider's order must include the client's name, the drug name, the dosage form and route, the dosage to be administered, and the frequency of administration.
Drugs bound to albumin are inactive.
- A. TRUE
- B. FALSE
Correct Answer: A
Rationale: True; drugs bound to albumin are inactive as only the free (unbound) fraction can interact with receptors or be metabolized/excreted.
If a 10 mg morphine produces a greater analgesic response than can achieved by ibuprofen at any dose, which of the following statements is correct?
- A. Morphine is less efficacious than is ibuprofen
- B. Morphine is less potent than is ibuprofen
- C. Morphine is a full agonist, and ibuprofen is a partial agonist
- D. Morphine is a better pain reliever than Ibuprofen
Correct Answer: D
Rationale: Morphine's greater maximal effect suggests higher efficacy, making it a better choice for pain relief, though potency isn't compared here.
The following drug causes a decrease in aqueous humour secretions from the ciliary body:
- A. Propranolol
- B. Nadolol
- C. Carvedilol
- D. Timolol
Correct Answer: D
Rationale: Timolol, a beta-blocker, reduces aqueous humor production in glaucoma.