A nurse is preparing to administer 0.9% sodium chloride 250 mL IV to infuse over 4 hr to a school-age child. The nurse should ensure the IV pump is set to deliver how many mL/hr? (Round the answer to the nearest whole number. Use a leading zero if it applies. Do not use a trailing zero.)
The Correct Answer is ["63"]
Step-by-step calculation:
IV rate= Total volume/Time (hours)
250/4 =62.5 mL/hr
Round the answer off: 63L/hr
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is ["0.5"]
Explanation
Identify the given information:
Dose of methimazole: 0.3 mg/kg/day
Weight of the child: 55 lb
Concentration of methimazole tablets: 5 mg/tablet
Convert the child's weight from pounds to kilograms:
1 lb ≈ 0.453592 kg
Calculate the total daily dose of methimazole in mg:
Total daily dose = Dose/kg/day x Weight (kg)
Substitute the values:
Total daily dose = 0.3 mg/kg/day x 55 lb x (0.453592 kg/1 lb)
Total daily dose ≈ 7.48 mg
Calculate the dose per dose (every 8 hours):
Dose per dose = Total daily dose / 3
Substitute the values:
Dose per dose = 7.48 mg / 3
Dose per dose ≈ 2.49 mg
Calculate the number of tablets to be administered:
Number of tablets = Dose per dose (mg) / Concentration (mg/tablet)
Substitute the values:
Number of tablets = 2.49 mg / 5 mg/tablet
Number of tablets ≈ 0.498
Round the answer to the nearest tenth:
Number of tablets ≈ 0.5 tablets
Correct Answer is ["0.3"]
Explanation
Given:
Desired dose: Penicillin G benzathine 200,000 units IM
Available concentration: Penicillin G benzathine injection 600,000 units/mL
To find:
Volume to administer (in mL)
Step 1: Set up the proportion
We can use the following proportion to solve the problem:
(Desired dose) / (Available concentration) = Volume to administer
Step 2: Substitute the values
Plugging in the given values, we get:
(200,000 units) / (600,000 units/mL) = Volume to administer
Step 3: Simplify
To simplify, we can invert the denominator and multiply:
(200,000 units) * (1 mL / 600,000 units) = Volume to administer
The "units" cancel out, leaving us with:
(200,000 * 1 mL) / 600,000 = Volume to administer
Step 4: Calculate
Performing the multiplication and division, we get:
200,000 mL / 600,000 = Volume to administer
0.33 mL = Volume to administer
Step 5: Round to the nearest whole number
Since the question asks for the volume rounded to the nearest whole number, we round 0.3.
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