A client is receiving ketorolac IM 45 mg every 6 hours for postoperative pain. The available 2 mL vial is labeled, "Ketorolac IM 30 mg/mL." How many mL should the nurse administer? (Enter numerical value only. If rounding is required, round to the nearest tenth.)
The Correct Answer is ["1.5"]
Given:
Ordered dose of Ketorolac: 45 mg IM every 6 hours
Concentration of Ketorolac: 30 mg/mL
Step 1: Set up the proportion:
Desired dose (mg) / Volume to administer (mL) = Concentration (mg/mL)
Step 2: Substitute the values:
45 mg / Volume = 30 mg/mL
Step 3: Solve for the unknown volume:
Volume = 45 mg / (30 mg/mL)
Volume = 45 mg x (1 mL / 30 mg)
Volume = 1.5 mL
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is ["30"]
Explanation
Given:
Ordered dose of lamivudine: 150 mg twice daily
Concentration of lamivudine solution: 10 mg/mL
Step 1: Calculate the total daily dose of lamivudine:
Total daily dose (mg) = Dose per administration (mg) x Number of administrations per day
Total daily dose (mg) = 150 mg/dose x 2 doses/day
Total daily dose (mg) = 300 mg/day
Step 2: Calculate the volume to be administered per dose:
Volume (mL) = Dose per administration (mg) / Concentration (mg/mL)
Volume (mL) = 150 mg / 10 mg/mL
Volume (mL) = 15 mL/dose
Step 3: Calculate the total volume to be administered in 24 hours:
Total volume (mL) = Volume per dose (mL) x Number of doses per day
Total volume (mL) = 15 mL/dose x 2 doses/day
Total volume (mL) = 30 mL/day
Correct Answer is ["4"]
Explanation
Given:
Ordered dose of amoxicillin/clavulanate: 2 g amoxicillin + 125 mg clavulanate every 12 hours
Available tablets: 1000 mg amoxicillin + 62.5 mg clavulanate extended-release tablets
Step 1: Determine the total daily dose of amoxicillin/clavulanate:
Since the medication is given every 12 hours, there are 2 administrations per day.
Total daily dose (amoxicillin) = Dose per administration (amoxicillin) x Number of administrations per day
Total daily dose (amoxicillin) = 2 g/dose x 2 doses/day
Total daily dose (amoxicillin) = 4 g/day = 4000 mg/day
Total daily dose (clavulanate) = Dose per administration (clavulanate) x Number of administrations per day
Total daily dose (clavulanate) = 125 mg/dose x 2 doses/day
Total daily dose (clavulanate) = 250 mg/day
Step 2: Calculate the number of tablets required per day:
Number of tablets/day = Total daily dose (amoxicillin) / Strength of amoxicillin per tablet
Number of tablets/day = 4000 mg/day / 1000 mg/tablet
Number of tablets/day = 4 tablets/day
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