A child receives a prescription for loratadine 5 mg t mouth once day. The bottled is labeled "Loratadine for Oral Suspension, USP 5 mg per 5 mL. How many teaspoons should the nurse instruct the parent to administer with each dose? (Enter numerical value only.)
The Correct Answer is ["1"]
Given:
Ordered dose of loratadine: 5 mg
Concentration of loratadine suspension: 5 mg per 5 mL
1 teaspoon = 5 mL
Step 1: Determine the volume of loratadine suspension to be administered:
Since the ordered dose and the concentration are the same (5 mg), the volume to be administered is 5 mL.
Step 2: Convert mL to teaspoons:
1 teaspoon = 5 mL
Volume in teaspoons = 5 mL / 5 mL/teaspoon
Volume in teaspoons = 1 teaspoon
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Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is ["1.3"]
Explanation
Given:
Ordered dose of amoxicillin: 25 mg/kg/day
Child's weight: 18 pounds
Concentration of amoxicillin suspension: 400 mg/5 mL
Step 1: Convert child's weight from pounds to kilograms:
1 pound (lb) = 0.453592 kilograms (kg)
Child's weight in kg = 18 lbs x 0.453592 kg/lb = 8.164656 kg
Step 2: Calculate the total daily dose of amoxicillin:
Total daily dose (mg) = Ordered dose (mg/kg/day) x Child's weight (kg)
Total daily dose (mg) = 25 mg/kg/day x 8.164656 kg
Total daily dose (mg) = 204.1164 mg/day
Step 3: Calculate the dose per administration:
Since the medication is given every 12 hours, there are 2 administrations per day.
Dose per administration (mg) = Total daily dose (mg) / Number of administrations per day
Dose per administration (mg) = 204.1164 mg/day / 2 administrations/day
Dose per administration (mg) = 102.0582 mg
Step 4: Calculate the volume to be administered per dose:
Volume (mL) = Dose per administration (mg) / Concentration (mg/mL)
Volume (mL) = 102.0582 mg / (400 mg/5 mL)
Volume (mL) = 102.0582 mg x (5 mL / 400 mg)
Volume (mL) = 1.2757275 mL
Step 5: Round to the nearest tenth:
Volume (mL) ≈ 1.3 mL
Correct Answer is ["42"]
Explanation
Given:
Volume of fluid: 1 liter = 1000 mL
Infusion time: 8 hours
Drop factor: 20 gtt/mL
Formula:
Flow rate (gtt/min) = (Volume (mL) / Time (hr)) x Drop factor (gtt/mL) / 60 min/hr
Step 1: Calculate the infusion rate in mL/hr:
Infusion rate (mL/hr) = Volume (mL) / Time (hr)
Infusion rate (mL/hr) = 1000 mL / 8 hr
Infusion rate (mL/hr) = 125 mL/hr
Step 2: Calculate the flow rate in gtt/min:
Flow rate (gtt/min) = (Infusion rate (mL/hr) x Drop factor (gtt/mL)) / 60 min/hr
Flow rate (gtt/min) = (125 mL/hr x 20 gtt/mL) / 60 min/hr
Flow rate (gtt/min) = 2500 gtt/hr / 60 min/hr
Flow rate (gtt/min) = 41.667 gtt/min
Step 3: Round to the nearest whole number:
Flow rate (gtt/min) ≈ 42 gtt/min
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