Nokea
A medication is ordered for a client. The dosage he is to receive is 100,000 units. The drug label reads 400,000 units/mL. When setting up the dosage calculation using dimensional analysis, the nurse identifies the unit of measure to be calculated as which of the following?
- A. Milliliters
- B. Units
- C. Milligrams
- D. Tablets
Correct Answer: A
Rationale: The order specifies the client is to receive 100,000 units, and the drug is supplied as 400,000 units/mL. Using dimensional analysis, the goal is to calculate the volume (mL) to administer, so the unit of measure to be calculated is milliliters.
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"Dose desired / dose on hand = dose administered" is the formula for calculating the dose to be administered. Under under which of the following circumstances is this to be used?
- A. When the physician is not available to calculate the dosage
- B. When the dosage is written in the apothecary system
- C. When the dose desired and dose on hand are in the same system
- D. When the label of the drug is in the metric system
Correct Answer: C
Rationale: When the dose ordered by the physician (dose desire is written in the same system as the dose on the drug container (dose on han, the above formula is used for calculating the dose to be administered. When the physician is not available to calculate the dosage, the dosage is written in the apothecary system, and the label of the drug is in the metric system are circumstances in which it becomes necessary for the nurse to compute the drug dosage.
The nurse is checking the dosage of a drug ordered in mg/ kg. A client weighs 275lb. The client weighs kilograms.
- A. 100 kg
- B. 125 kg
- C. 150 kg
- D. 175 kg
Correct Answer: B
Rationale: Pounds must be converted to kilograms using the conversion factor of 2.2 lb in 1 kg. Therefore, 275 / 2.2 = 125.
A nurse is reviewing the package label of a drug. Which name would the nurse find on the drug label? Select all that apply.
- A. Trade name
- B. Scientific name
- C. Pharmacologic name
- D. Nonproprietary name
- E. Generic name
Correct Answer: A,E
Rationale: The nurse will find two names on the drug label, the trade or brand name and the generic (official) name.
A nursing instructor is describing the various work factors that can lead to errors in dosage calculations to a group of nursing students. The instructor determines that the teaching was successful when the students identify which of the following as a factor? Select all that apply.
- A. Poor lighting
- B. Heavy workload
- C. Noise
- D. Temperature
- E. Interruptions
Correct Answer: A,B,C,E
Rationale: Factors in the work environment that often contribute to errors made by people include poor lighting, noise, interruptions, and a taxing workload.
After teaching a group of nursing students about measurement systems, the instructor determines that the teaching was successful when the students identify which of the following as units of the metric system?
- A. Minims
- B. Grains
- C. Drams
- D. Grams
Correct Answer: D
Rationale: Grams are units of weight in the metric system. Minims are units of volume in the apothecary system. Grains and drams are units of weight in the apothecary system.