Samantha Hudson a two-year-old child in the ER with parents at the bedside. She came in not feeling well, irritable, crying all night, and not eating or drinking. Orders: Vistaril 15 mg IM q4h, Stat x 1 for nausea.
Available: Vistaril 50 mg/ml
How many mL will you administer to Samantha now?
1 mL
0.5 mL
0.3 mL
0.2 mL
The Correct Answer is C
Given:
Desired dose of Vistaril: 15 mg
Concentration of Vistaril: 50 mg/mL
Step 1: Set up the proportion:
Desired dose (mg) / Volume to administer (mL) = Concentration (mg/mL)
Step 2: Substitute the values:
15 mg / Volume = 50 mg/mL
Step 3: Solve for the unknown volume:
Volume = 15 mg / 50 mg/mL
Step 4: Calculate the volume:
Volume = 0.3 mL
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
Given:
Weight in pounds: 102 lbs
Conversion factor: 1 lb = 0.453592 kg
Step 1: Convert pounds to kilograms:
Weight in kg = Weight in lbs x Conversion factor (kg/lb)
Weight in kg = 102 lbs x 0.453592 kg/lb
Weight in kg = 46.266544 kg
Step 2: Round to the nearest tenth:
Weight in kg ≈ 46.3 kg
Correct Answer is C
Explanation
Given:
Volume of fluid: 50 mL (DSW)
Infusion time: 30 minutes
Formula:
Flow rate (mL/hr) = Volume (mL) / Time (hr)
Step 1: Convert infusion time to hours:
Infusion time (hr) = 30 min / 60 min/hr
Infusion time (hr) = 0.5 hr
Step 2: Calculate the infusion rate in mL/hr:
Flow rate (mL/hr) = Volume (mL) / Infusion time (hr)
Flow rate (mL/hr) = 50 mL / 0.5 hr
Flow rate (mL/hr) = 100 mL/hr
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