Nokea
Which type of leukemia is more common in older adults?
- A. Acute myelocytic leukemia
- B. Acute lymphocytic leukemia
- C. Chronic lymphocytic leukemia
- D. Chronic granulocytic leukemia
Correct Answer: C
Rationale: Chronic lymphocytic leukemia (CLL) is most common in older adults, typically diagnosed in those over 60, due to its indolent nature and prevalence in this age group.
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The physician has ordered that a serum trough level be drawn for a medication. Which of the following is the correct time to draw blood for a trough level?
- A. At the midpoint in time between two scheduled doses of the drug.
- B. At the time the drug peaks.
- C. Immediately after a scheduled dose is administered.
- D. Immediately before a scheduled dose is due.
Correct Answer: D
Rationale: A trough level is drawn immediately before a scheduled dose (D) to measure the lowest drug concentration in the blood. Other times (A, B, C) do not reflect the trough level.
A home health nurse is making preparations for morning visits. Which one of the following clients should the nurse visit first?
- A. AÂ W client with a stroke with tube feedings
- B. A client with congestive heart failure complaining of nighttime dyspnea
- C. A client with a thoracotomy six months ago
- D. A client with Parkinson's disease
Correct Answer: B
Rationale: Nighttime dyspnea suggests acute heart failure exacerbation, requiring priority.
A non-immune nurse should not be assigned a client who has which of the vaccine-preventable airborne diseases? Select all that apply.
- A. tuberculosis
- B. influenza
- C. smallpox
- D. pertussis
Correct Answer: A,C
Rationale: Tuberculosis and smallpox are airborne, vaccine-preventable diseases posing risks to non-immune nurses. Influenza and pertussis are primarily droplet-transmitted.
Twenty micrograms (g) are equal to how many milligrams? Record your answer using a decimal number.
Correct Answer: 0.02
Rationale: 1 mg = 1,000 g, so 20 /1,000 = 0.02 mg.
A child who weighs 40 kg is prescribed clarithromycin 15 mg/kg per day for 10 days in two divided doses for acute strep throat. If the medication is provided in suspension with 250 mg/5 mL, how many total milliliters of medication are required to complete the treatment? Record your answer using a whole number.
Correct Answer: 120
Rationale: Daily dose = 15 mg/kg X 40 kg = 600 mg/day. For 10 days, total dose = 600 X 10 = 6,000 mg. Suspension is 250 mg/5 mL, so 1 mg = 0.02 mL. Thus, 6,000 mg X 0.02 mL/mg = 120 mL.