A nurse is preparing to administer cephalexin 250 mg PO to a client who has mastitis.
Available is cephalexin 500 mg tablets.
How many tablets should the nurse administer? (Round the answer to the nearest tenth.
Use a leading zero if it applies.
Do not use a trailing zero.)
The Correct Answer is ["0.5"]
Step 1: mg ÷ 500 mg = 0.5 The nurse should administer 0.5 tablets.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is ["1.1"]
Explanation
Step 1: Convert the weight from pounds and ounces to kilograms. 8 lb 4 oz = 8.25 lb 8.25 lb ÷ 2.2 = 3.75 kg Step 2: Calculate the dose per minute. 1 mcg/kg/min × 3.75 kg = 3.75 mcg/min Step 3: Calculate the total dose per hour. 3.75 mcg/min × 60 min/hr = 225 mcg/hr Step 4: Determine the concentration of the solution. 50 mg = 50,000 mcg 50,000 mcg = 250 mL 225 mcg = (225 mcg × 250 mL) ÷ 50,000 mcg = 1.125 mL/hr Step 5: Round to the nearest tenth. 1.125 mL/hr ≈ 1.1 mL/hr The IV pump should be set to deliver 1.1 mL/hr.
Correct Answer is ["30"]
Explanation
Step 1 is… (0.5 mg/min × 60 min/hr) ÷ 1 mg/mL Step 2 is… 30 mg/hr ÷ 1 mg/mL Step 3 is… 30 mL/hr The final calculated answer is 30 mL/hr.
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