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A physician writes an order for a client to receive levothyroxine (Synthroid) 0.2 mg, but 100-mcg tablets are supplied. The nurse would administer tablets to the client.
- A. One tablet
- B. Two tablets
- C. Three tablets
- D. Four tablets
Correct Answer: B
Rationale: 1000 mcg / 1 mg = 100 mcg / X mg
X = 100 / 1000
X = 0.1 mg
0.2 mg / 0.1 mg = 2
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A home health care nurse is reviewing a client's medication during a home visit. The client is prescribed atorvastatin 10 mg daily, a change from his previous order of 20 mg daily. The client shows the nurse the medication container from the pharmacy. The label reads atorvastatin 20 mg. The nurse determines that the client is taking the correct dosage when the client states he is taking which of the following
- A. 1/2 tablet every day
- B. 1 tablet every day
- C. 1/2 tablet every other day
- D. 1 tablet every other day
Correct Answer: A
Rationale: The on-hand dose of the drug is 20 mg, but the client is to take 10 mg daily. So the client is correct when he says that he takes 1/2 tablet daily. Any other dosage would be incorrect.
A client is to receive a 7.5 mg/kg dose of a drug. The client weighs 155 lb. The client would receive ??..per dose
- A. 450.0 mg
- B. 528.4 mg
- C. 600.0 mg
- D. 675.0 mg
Correct Answer: B
Rationale: First, the client's weight needs to be converted to kilograms. 155 lb ? 1 kg / 2.2 lb = 70.5 kg. Then the drug dosage is calculated as follows: 70.5 kg ? 7.5 mg/kg = 528.4 mg.
A client weighs 56 kg. The client weighs pounds.
- A. 112.0 lb
- B. 123.2 lb
- C. 134.4 lb
- D. 145.6 lb
Correct Answer: B
Rationale: Kilograms must be converted to pounds using the conversion factor of 2.2 pounds in 1 kg. Therefore, 56 ? 2.2 = 123.2.
A client weighs 200 lb. The client is to receive 5 mg/kg per dose of a drug. The client will receive ?. mg of the drug in each dose.
- A. 400.0 mg
- B. 454.5 mg
- C. 500.0 mg
- D. 550.0 mg
Correct Answer: B
Rationale: First, the patient's weight must be converted to kilograms: 200 lb ? 1 kg / 2.2 lb = 90.9 kg. Then the dosage is calculated: 90.9 kg ? 5 mg/kg = 454.5 mg.
A nurse is checking the label of a drug. Which of the following would the nurse identify as an important item needed to administer a drug? Select all that apply.
- A. Monitoring parameters
- B. Side effects
- C. Dosage form
- D. Drug name
- E. Dosage strength
Correct Answer: C,D,E
Rationale: Although drug labels contain a great amount of information about the drug being given, three specific items are needed to administer a drug: the drug name, dosage form, and dosage strength.