Try Naxlex NCLEX-RN (Free-Trial)

A client is prescribed 10,000 units of heparin. How many mL per dose should be administered from a vial containing heparin, with a concentration of 20,000 units/mL?

0.5 mL

1 mL

1.5 mL

2 mL

Answer and Explanation

The Correct Answer is A

To determine the mL per dose of heparin, we can use the following formula:

mL per dose = (total units needed) / (concentration of heparin in units/mL). Substituting the values given in the

Question :.

mL per dose = 10,000 units / 20,000 units/mL = 0.5 mL per dose.

Therefore, the client should receive 0.5 mL per dose of heparin from the vial containing a concentration of 20,000 units/mL.

Nursing Test Bank

Test Bank #1: RN Pharmacology Exams Test Bank #2: RN Medical-Surgical Exams Test Bank #3: RN Fundamentals Exams Test Bank #4: RN Maternal-Newborn Exams Test Bank #5: RN Anatomy and Physiology Exams Test Bank #6: RN Obstetrics and Pediatrics Exams Test Bank #7: RN Fluid and Electrolytes Exams Test Bank #9: RN Adult Health Test Bank #10: RN Dosage Calculation Test Bank #11: RN Community Health Exams Test Bank #12: RN Psychology Exams Test Bank #13: RN Nursing Care Of Children Test Bank #14: RN Foundations of Nursing Exams

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

Naxlex Comprehensive Predictor Exams

Exam #1: RN Comprehensive predictor 2023 proctored exam Exam #2: Ati rn vati comprehensive predictor proctored exam Exam #3: Ati Rn Comprehensive Predictor Proctored Exam 2023 Exam #4: Rn Comprehensive Predictor 2023 Proctored Exam - St. Joseph Exam #5: RN Comprehensive Predictor Proctored Exam (National U CA San Diego) Exam #6: Ati rn comprehensive predictor 2023 retake proctored exam Exam #7: RN Hesi Exit Proctored Exam Exam #8: Hesi RN Exit proctored exam Exam #9: Hesi rn exit proctored exam Exam #10: Hesi Rn compass exit B proctored exam

Free Nursing Study Resources

Correct Answer is C

Explanation

To calculate the rate per hour, divide the amount of magnesium sulfate to be administered by the concentration of magnesium sulfate in the IV bag:

6 grams ÷ 40 grams = 0.15

Then, multiply the result by the volume of the IV bag, which is usually 1000 mL: 0.15 x 1000 mL = 150 mL

This is the amount of fluid that contains 6 grams of magnesium sulfate. To administer this amount over 30 minutes, multiply by 2 to get the rate per hour:

150 mL x 2 = 300 mL/hr.

A. Dextrose 50%, add 1 mL to 4 mL injectable saline B. Dextrose 50%, add 2 mL to 3 mL injectable saline C. Dextrose 50%, add 3 mL to 2 mL injectable saline D. Dextrose 50%, add 4 mL to 1 mL injectable saline E. Dextrose 50%, add 4 mL to 1 mL injectable saline

Correct Answer is A

Explanation

Dextrose 50%, add 1 mL to 4 mL injectable saline. To obtain 5 mL of 10% dextrose, 0.5 mL of the 50% dextrose should be diluted with 4.5 mL of sterile water or normal saline. Therefore, the nurse should add 1 mL of the 50% dextrose to 4 mL of injectable saline to get a final concentration of 10% dextrose in 5 mL. This will give the client the appropriate dose.

Choice B is incorrect because adding 2 mL of the 50% dextrose to 3 mL of saline would give a final concentration of 20%, which is higher than the prescribed concentration of 10%.

Choice C is incorrect because adding 3 mL of the 50% dextrose to 2 mL of saline would give a final concentration of 30%, which is significantly higher than the prescribed concentration of 10%.

Choice D is incorrect because adding 4 mL of the 50% dextrose to 1 mL of saline would give a final concentration of 40%, which is much higher than the prescribed concentration of 10%.

View Question and Answer

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

A client is prescribed 10,000 units of heparin. How many mL per dose should be administered from a vial containing heparin, with a concentration of 20,000 units/mL?

Nursing Test Bank

Naxlex Comprehensive Predictor Exams

A physician orders magnesium sulfate, 6 grams loading dose to be administered over 30 minutes. There are 40 grams of magnesium sulfate in the IV bag. What is the rate per hour to administer the loading dose?

Correct Answer is C

Explanation

A physician ordered 5 mL 10% dextrose stat. The only dextrose available is a vial of 5 mL 50% dextrose. How can the nurse provide the appropriate dose?

Correct Answer is A

Explanation

Why is subcutaneous (SC) insulin usually administered into the abdomen as the preferred site?

Coumadin 75 mg is ordered for a patient with deep vein thrombosis. Coumadin 25 mg oral tablets are available in the electronic medication administration record. How many tablets should the nurse administer to the patient?

Which unit of measurement is equal to one milligram (mg)?

What is the total volume of medication in a vial with lot number 666, containing 100 tablets, each 333 mg and expiring on 2-22-16?

A nurse administers 25 mg of a medication to a client from a vial that has 50 mg reconstituted single-dose medication. The client requires two intramuscular injections per day. What is the number of vials required for 5 days?

A client diagnosed with tuberculosis is prescribed rifampin, 4 mg/kg. 8 hourly for 6 days. The client weighs 43 kg. How many 100 mg bottles of rifampin will be required for this client? Round your answer to the nearest whole number.

A client is prescribed a course of 600 mg/day of ciprofloxacin for 1 week to treat a throat infection. Each bottle contains 7 tablets that are 300 mg. How many bottles would be required for the client's prescribed course of treatment throughout the week?

A client is prescribed 250 mg of metformin. The pharmacy supplies 500 mg pre- scored tablets of metformin. How should the nurse administer the medication to the client?