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

Calculate the flow rate I mL/hr. and Units/hr. (Equipment used is programmable in whole mL/hr and Show all work) Order: 25,000 units of Heparin in 250 mL to infuse at 11 mL/hr. Calculate rate in units/hr.

A.

900 units/hr

B.

1,000 units/hr

C.

2.000 units/hr

D.

1,100 units/hr

Answer and Explanation

The Correct Answer is D

Given:

Total Heparin in solution: 25,000 units

Volume of solution: 250 mL

Infusion rate: 11 mL/hr

 

Step 1: Calculate the concentration of Heparin in the solution:

Concentration (units/mL) = Total Heparin (units) / Volume of solution (mL)

Concentration (units/mL) = 25,000 units / 250 mL

Concentration (units/mL) = 100 units/mL

 

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

Infusion rate (units/hr) = Infusion rate (mL/hr) x Concentration (units/mL)

Infusion rate (units/hr) = 11 mL/hr x 100 units/mL

Infusion rate (units/hr) = 1100 units/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 A

Explanation

A) The two main purposes for diuretics are to decrease fluid and decrease hypertension (lower blood pressure):
Diuretics primarily work by promoting the excretion of excess sodium and water from the body, which decreases fluid volume. This reduction in fluid volume helps to lower blood pressure, especially in conditions like hypertension and heart failure, where fluid buildup can exacerbate symptoms.

B) The two main purposes are to decrease fluid volume in the tissues and circulation, increasing blood pressure:
The primary purpose of diuretics is to decrease fluid volume, which helps lower blood pressure, not increase it. Diuretics are used to reduce the workload on the heart and the risk of complications like stroke and heart failure by lowering blood pressure and removing excess fluid from the body.

C) The two main purposes of diuretics are to increase fluid in the body and blood pressure:
Diuretics do not increase fluid in the body. In fact, they decrease fluid in the body to help reduce blood pressure. This option contradicts the fundamental mechanism of action of diuretics.

D) The two main purposes of diuretics are to increase circulating fluid and lower blood pressure:
Diuretics do not increase circulating fluid; they decrease it. By promoting the excretion of sodium and water, diuretics decrease the volume of circulating fluid, which is a key factor in lowering blood pressure.

Correct Answer is A

Explanation

Given:

Infusion rate: 3 mL/hr

Concentration of Nitroglycerin: 50 mg in 250 mL D5W (200 mcg/mL)

Step 1: Calculate the dose in mg/hr:

Dose (mg/hr) = Infusion rate (mL/hr) x Concentration (mg/mL)

Dose (mg/hr) = 3 mL/hr x 200 mcg/mL

Dose (mg/hr) = 600 mcg/hr

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