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NurseDive Free Nursing Practice Question
A nurse is preparing to administer isoniazid 187 mg IM. Available is isoniazid injection 100 mg/mL. How many mL should the nurse administer?
(Round the answer to the nearest tenth. Use a leading zero if it applies. Do not use a trailing zero.)
This question is an excerpt from Nurse Dive's nursing test bank - Ati Dosage Calculations RN Fundamentals Proctored Exam. Take the full exam now
Full Explanation
To calculate the number of mL the nurse should administer, you need to divide the dose of isoniazid (187 mg) by the concentration of the isoniazid injection (100 mg/mL). This gives you 187 mg / (100 mg/mL) =
1.87 mL. When rounded to the nearest tenth, this becomes 1.9 mL. So, the nurse should administer 1.9 mL of isoniazid injection.
Similar Questions
A nurse is preparing to administer gentamicin 1 mg/kg IM to a client who weighs 154 lb. Available is gentamicin solution 40 mg/mL. How many mL should the nurse administer?
(Round the answer to the nearest tenth. Use a leading zero if it applies. Do not use a trailing zero.)
Full Explanation
Step 1: Convert pounds to kilograms.
154 lb * (1 kg / 2.20462 lb) = 70 kg
Step 2: Calculate the total dose of gentamicin.
1 mg/kg * 70 kg = 70 mg
Step 3: Calculate the volume of gentamicin solution to administer.
70 mg / 40 mg/mL = 1.75 mL
Therefore, the nurse should administer 1.8 mL of gentamicin solution.
A nurse is preparing to administer morphine 0.2 mg/kg IM to a client who weighs 99 lb. Available is morphine injection 10 mg/mL. How many mL should the nurse administer?
(Round the answer to the nearest tenth. Use a leading zero if it applies. Do not use a trailing zero.)
Full Explanation
First, you need to convert the client's weight from pounds to kilograms. There are approximately 2.2 pounds in 1 kilogram, so 99 lb / 2.2 = 45 kg. The dose of morphine is 0.2 mg/kg, so for a client who weighs 45 kg, the dose would be 0.2 mg/kg * 45 kg = 9 mg. To calculate the number of mL the nurse should administer, you need to divide the dose of morphine (9 mg) by the concentration of the morphine injection (10 mg/mL). This gives you 9 mg / (10 mg/mL) = 0.9 mL. When rounded to the nearest tenth, this remains
0.9 mL. So, the nurse should administer 0.9 mL of morphine injection.
A nurse is talking with the parent of a child who has asthma and a new prescription for albuterol inhalation aerosol 8.5 g, inhale 1 to 2 puffs orally every 4 to 6 hr as needed for asthma. The nurse interprets this medication as which of the following types of prescription?
A. Now
B. PRN
The prescription for albuterol inhalation aerosol 8.5 g, inhale 1 to 2 puffs orally every 4 to 6 hr as needed for asthma is a PRN prescription. PRN stands for "pro re nata," which means "as needed" in Latin. This type of prescription allows the patient to take the medication as needed for a specific condition or symptom, rather than on a regular schedule.
C. Single
D. Standard
Full Explanation
The prescription for albuterol inhalation aerosol 8.5 g, inhale 1 to 2 puffs orally every 4 to 6 hr as needed for asthma is a PRN prescription. PRN stands for "pro re nata," which means "as needed" in Latin. This type of prescription allows the patient to take the medication as needed for a specific condition or symptom, rather than on a regular schedule.
