Nokea
Thyroxin is contributed in all listed processes except one:
- A. Increase tissue demand of oxygen consumption
- B. Activating protein, carbohydrates and fats metabolism
- C. Increase the main metabolism
- D. Decrease the main metabolism
Correct Answer: D
Rationale: Thyroxine (T4) increases metabolism, not decreases it, by enhancing oxygen use and nutrient breakdown.
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A nurse is providing discharge teaching to a client who has a new prescription for Clozapine. Which of the following statements should the nurse include in the teaching?
- A. You should have a high-carbohydrate snack between meals and at bedtime.
- B. You are likely to develop hand tremors if you take this medication for a long period of time.
- C. You may experience temporary to the first record of the first dose.
- D. You should have your white blood cell count monitored every week.
Correct Answer: D
Rationale: Clozapine requires weekly WBC monitoring due to risk of agranulocytosis.
Pregnant patients who are taking isoniazid (INH) should take 25 mg/day of vitamin B6 (pyridoxine) to prevent:
- A. Beriberi
- B. Peripheral neuropathy
- C. Rickets
- D. Megaloblastic anemia
Correct Answer: B
Rationale: Vitamin B6 supplementation prevents INH-induced peripheral neuropathy.
Characteristics of vitamin D and its metabolites include which of the following?
- A. Act to decrease serum levels of calcium
- B. Activation of vitamin D receptors in the major cells of
- C. Calcitriol is the major derivative responsible for increasing intestinal absorption of phosphate
- D. Metabolites of vitamin D increase renal excretion of calcium
Correct Answer: C
Rationale: Calcitriol increases intestinal absorption of calcium and phosphate.
Which statement accurately describes a drug agonist?
- A. A drug that reacts with specific receptor sites on a cell and prevents the reaction of another chemical with a different receptor site on that cell
- B. A drug that interferes with the enzyme systems that act as catalysts for different chemical reactions
- C. A drug that interacts directly with receptor sites to cause the same activity that a natural chemical would cause at that site
- D. A drug that reacts with receptor sites to block normal stimulation, producing no effect
Correct Answer: C
Rationale: Agonists are drugs that produce effects similar to those produced by naturally occurring neurotransmitters, hormones, or other substances found in the body. Noncompetitive antagonists are drugs that react with certain receptor sites, preventing the reaction of another chemical with a different receptor site. Drug-enzyme interactions interfere with the enzyme systems that stimulate various chemical reactions.
The nurse is caring for a patient scheduled for surgery this morning who is not to be given anything orally. The nurse reviews the medication administration record and finds the patient has an important medication due but it is supposed to be given orally. What is the nurse's best action?
- A. Give the medication with a small sip of water.
- B. Give the medication via a different route.
- C. Hold the medication and put a note on the front of the chart for the surgeon.
- D. Call the ordering health care provider and clarify administration
Correct Answer: D
Rationale: NPO status requires physician clarification to ensure safety and appropriateness of administration.