How it Works
Try Naxlex NCLEX-RN (Free-Trial)

Calculate the flow rate in mL/hr. and Units/hr. (Equipment used is programmable in whole mL/hr and Show all work) Order: 100 mL 0.45% NS in 45 min by infusion pump. Calculate rate in ml/hr

A.

133 mL/hr

B.

13.3 mL/hr

C.

130 mL/hr

D.

13 ml/hr

Answer and Explanation

The Correct Answer is A

Given:

Volume of fluid: 100 mL

Infusion time: 45 minutes

Step 1: Convert infusion time to hours:

Infusion time (hr) = 45 min / 60 min/hr

Infusion time (hr) = 0.75 hr

Step 2: Calculate the infusion rate in mL/hr:

Flow rate (mL/hr) = Volume (mL) / Infusion time (hr)

Flow rate (mL/hr) = 100 mL / 0.75 hr

Flow rate (mL/hr) = 133.3333333 mL/hr

Step 3: Round to the nearest whole number:

Flow rate (mL/hr) ≈ 133 mL/hr


Get 100+ Naxlex Exit Exams for $79 Try Naxlex NCLEX-RN (14 Day Free-Trial)

Naxlex Comprehensive Predictor Exams

Free Nursing Study Resources

Related Questions

Correct Answer is B

Explanation

Given:

Ordered dose of amoxicillin: 30 mg/kg/day divided every 12 hours

Toddler's weight: 33 lbs

Concentration of amoxicillin suspension: 200 mg/5 mL

Step 1: Convert the toddler's weight from pounds to kilograms:

1 pound (lb) = 0.453592 kilograms (kg)

Weight in kg = 33 lbs x 0.453592 kg/lb = 14.968 kg

Step 2: Calculate the total daily dose of amoxicillin:

Total daily dose (mg) = Ordered dose (mg/kg/day) x Weight (kg)

Total daily dose (mg) = 30 mg/kg/day x 14.968 kg

Total daily dose (mg) = 449.04 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) = 449.04 mg/day / 2 administrations/day

Dose per administration (mg) = 224.52 mg

Step 4: Calculate the volume to be administered:

Volume (mL) = Dose per administration (mg) / Concentration (mg/mL)

Volume (mL) = 224.52 mg / (200 mg/5 mL)

Volume (mL) = 224.52 mg x (5 mL / 200 mg)

Volume (mL) = 5.613 mL

Step 5: Round to the nearest tenth:

Volume (mL) ≈ 5.6 mL

Correct Answer is B

Explanation

Given:

Volume of fluid: 100 mL

Infusion time: 4 hours

Drop factor: 60 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) = 100 mL / 4 hr

Infusion rate (mL/hr) = 25 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) = (25 mL/hr x 60 gtt/mL) / 60 min/hr

Flow rate (gtt/min) = 1500 gtt/hr / 60 min/hr

Flow rate (gtt/min) = 25 gtt/min

Whether you are a student looking to ace your exams or a practicing nurse seeking to enhance your expertise , our nursing education contents will empower you with the confidence and competence to make a difference in the lives of patients and become a respected leader in the healthcare field.

Visit Naxlex, invest in your future and unlock endless possibilities with our unparalleled nursing education contents today

Register