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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.
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A group of nursing students are reviewing the various systems of measurement. The students demonstrate understanding of the information when they identify which of the following as a metric system unit? Select all that apply.
- A. Inch
- B. Milligram
- C. Centimeter
- D. Ounce
- E. Pound
Correct Answer: B,C
Rationale: The metric system uses the gram, liter, and meter. Milligram and centimeter are metric units.
A nursing instructor is describing the importance of preventing errors in medication administration and doses. Which of the following would the instructor emphasize as the best method for detecting errors?
- A. Checking calculations three times
- B. Having each person involved in the process check the dosage
- C. Reading drug labels very carefully
- D. Checking the dosage in a reputable drug reference
Correct Answer: B
Rationale: The best method of error detection is the manual redundancy system. This is a system in which each person in the process of medication prescription and delivery checks the drug dosage for accuracy. Nurses use this system when they perform the 5 rights and 3 checks to catch a potential error in drug administration. Double checking calculations and reading labels carefully are important, but they are not the best method for detecting errors. Checking the dosage in a reputable drug reference would help to ensure that the dosage is within the safe dosage range, but this would do nothing to ensure that the dosage is accurate.
A client is to receive 250 mg of penicillin VK twice daily for 10 days. Penicillin VK is available in a 500 mg tablet. The nurse would instruct the client to take???.tablet at each dose.
- A. 1/4 tablet
- B. 1/2 tablet
- C. 1 tablet
- D. 2 tablets
Correct Answer: B
Rationale: 250 mg / 500 mg = 0.5 tablets.
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 group of nursing students are reviewing information about drugs and how they are supplied for parenteral administration. The students demonstrate understanding of the information when they identify which forms as available for parenteral administration? Select all that apply.
- A. Disposable syringes
- B. Reusable cartridges
- C. Ampules containing liquid form of the drug
- D. Reusable vial containing liquid form of the drug
- E. Vial containing drug powder
Correct Answer: A,C,D,E
Rationale: Parenteral drugs may be available in the following forms: liquids in disposable cartridges or disposable syringes; ampules or vials that contain the liquid form of the drug; and ampules or vials that contain the powder or crystal form of the drug. These vials may be single-dose or multidose vials.