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NurseDive Free Nursing Practice Question
A nurse is preparing to administer acetaminophen 650 mg PO to a client for pain. Available is acetaminophen liquid 160 mg/5 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 - Dosage calculations RN adult medical surgical assessment 3.1 proctored exam. Take the full exam now
Full Explanation
To calculate the amount of acetaminophen liquid to administer, you can use the following formula:
Amount (mL) = (Desired Dose in mg) / (Concentration in mg/mL)
Amount (mL) = 650 mg / (160 mg/5 mL) = 20.31 mL
Rounded to the nearest tenth, the nurse should administer approximately 20.3 mL of acetaminophen liquid.
Similar Questions
A nurse is preparing to administer cefazolin 500 mg IM every 8 hr. Available is cefazolin 1 g vial. The package insert instructs adding sterile water 2.5 mL to yield cefazolin 330 mg/mL. How many mL should the nurse administer per dose? (Round the answer to the nearest tenth. Use a leading zero if it applies. Do not use a trailing zero.)
Full Explanation
First, we need to calculate the amount of cefazolin 500 mg in milligrams per milliliter (mg/mL) using the information provided:
Cefazolin concentration after reconstitution = 330 mg/mL Amount of cefazolin needed per dose = 500 mg
Now we can calculate the volume (mL) required for the dose:
Volume (mL) = Amount of cefazolin needed per dose / Cefazolin concentration after reconstitution
Volume (mL) = 500 mg / 330 mg/mL ≈ 1.52 mL
Rounded to the nearest tenth, the nurse should administer approximately 1.5 mL of cefazolin per dose.
A nurse is preparing to administer exenatide 10 mcg subcutaneous. Available is exenatide 250 mcg/mL. How many ml. should the nurse administer? (Round the answer to the nearest hundredth. Use a leading zero if it applies. Do not use a trailing zero.)
Full Explanation
To calculate the volume of exenatide to administer, you can use the following formula:
Volume (mL) = (Desired Dose in mcg) / (Concentration in mcg/mL)
In this case, the desired dose is 10 mcg, and the concentration is 250 mcg/mL. Plugging these values into the formula:
Volume (mL) = 10 mcg / 250 mcg/mL = 0.04 mL
Rounded to the nearest hundredth, the nurse should administer approximately 0.04 mL of exenatide.
A nurse is preparing to reconstitute amoxicillin/clavulanate potassium oral suspension for administration to a client who has a respiratory tract infection. According to the label, which of the following actions should the nurse take? (Refer to the medication label below.)
Directions for mixing
Tap bottle until all powder flows freely. Add approximately 2/3 of total water for reconstitution
Shake vigorously to wet powder. Add remaining water, again shake vigorously Dosage: See accompanying prescribing Information
Discard after 10 days.
125 mg/5 mL
AMOXICILLIN CLAVULANATE POTASSIUM FOR ORAL SUSPENSION
When reconstituted, each 5ml contains AMOXICILLIN 125 mg. as the trihydrate
CLAVULANIC
ACID, 31.25 mg.
as clavulanate potassium
75mL
(when reconstituted)
A. Store the medication at room temperature following reconstitution
Store the medication at room temperature following reconstitution: This option is incorrect. While it provides information about the storage of the medication after reconstitution, it doesn't pertain to the reconstitution process itself. Storage information is essential but not part of the reconstitution process.
B. Use 0.9% sodium chloride solution as a diluent
Use 0.9% sodium chloride solution as a diluent: This option is incorrect. The label instructions mention adding water for reconstitution, not sodium chloride solution. Using the wrong diluent can result in incorrect drug concentrations and potential harm to the patient.
C. Discard any remaining medication after 10 days
Discard any remaining medication after 10 days: This option is correct. The label clearly states that the reconstituted medication should be discarded after 10 days. This is important information for safe medication administration.
D. Roll the vial gently in hands to mix the medication
Roll the vial gently in hands to mix the medication: This option is incorrect. The label instructions specify shaking vigorously to wet the powder and then adding the remaining water, followed by vigorous shaking. Rolling the vial gently is not mentioned in the label instructions.
Full Explanation
a. Store the medication at room temperature following reconstitution: This option is incorrect. While it provides information about the storage of the medication after reconstitution, it doesn't pertain to the reconstitution process itself. Storage information is essential but not part of the reconstitution process.
b. Use 0.9% sodium chloride solution as a diluent: This option is incorrect. The label instructions mention adding water for reconstitution, not sodium chloride solution. Using the wrong diluent can result in incorrect drug concentrations and potential harm to the patient.
c. Discard any remaining medication after 10 days: This option is correct. The label clearly states that the reconstituted medication should be discarded after 10 days. This is important information for safe medication administration.
d. Roll the vial gently in hands to mix the medication: This option is incorrect. The label instructions specify shaking vigorously to wet the powder and then adding the remaining water, followed by vigorous shaking. Rolling the vial gently is not mentioned in the label instructions.