A nurse is preparing to administer lithium 300 mg PO to a client who has bipolar disorder. Available is lithium 150 mg capsules. How many capsules should the nurse administer? (Round the answer to the nearest whole number. Use a leading zero if it applies. Do not use a trailing zero.)
1.5 caps
0.5 caps
1 cap
2 caps
The Correct Answer is D
Given:
Ordered dose of Lithium: 300 mg
Available Lithium capsules: 150 mg/capsule
Step 1: Calculate the number of capsules required:
Number of capsules = Desired dose (mg) / Strength of each capsule (mg/capsule)
Number of capsules = 300 mg / 150 mg/capsule
Number of capsules = 2 capsules
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is D
Explanation
Convert the dosage to mcg per hour:
55 mcg/min × 60 min = 3300 mcg/hr
Determine the concentration of nitroglycerin available:
The concentration is 25 mg per 250 mL, which converts to 100 mcg/mL.
Calculate the flow rate in mL per hour using the dosage and concentration:
Flowrate(mL/hr)=(Dose(mcg/hr)/Concentration(mcg/mL))
(3300mcg/hr100mcg/mL)=33mL/hr
Correct Answer is C
Explanation
Convert ounces to milliliters (1 oz = 29.5735 mL):
8 oz coffee: 8 × 29.5735 = 236.588 mL
3 oz juice: 3 × 29.5735 = 88.7205 mL
12 oz soda: 12 × 29.5735 = 354.882 mL
Calculate the water intake from the water pitcher:
Total water intake: 800 mL (initial) - 200 mL (remaining) = 600 mL
Calculate the IV fluid intake:
IV fluids at 40 mL/hr for 8 hours: 40 × 8 = 320 mL
Add all the fluid amounts:
Totalfluidintake=236.588mL+88.7205mL+354.882mL+600mL+320mL=1600.1905mL
Rounding to the nearest whole number: 1600 mL.
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