A patient with deep vein thrombosis has heparin ordered. Heparin 25,000 units in 250 mL D5W infuses at a rate of 12 mL/hr from 9:00 a.m. to 11:00 a.m. and 10 mL/hr from 11:00 a.m. to 2:00 p.m.
What is the total amount of heparin, in units, that the patient received from 9:00 a.m. to 2:00 p.m.?

5400 units

6800 units

7200 units

8900 units

Answer and Explanation

The Correct Answer is A

To calculate the total amount of heparin, we need to multiply the infusion rate by the time and then by the concentration of heparin in the IV bag. From 9:00 a.m. to 11:00 a.m., the infusion rate was 12 mL/hr, so the amount of heparin infused in this period was 12 mL/hr x 2 hours x 100 units/mL = 2400 units.

From 11:00 a.m. to 2:00 p.m., the infusion rate was 10 mL/hr, so the amount of heparin infused in this period was 10 mL/hr x 3 hours x 100 units/mL = 3000 units. The total amount of heparin infused from 9:00 a.m. to 2:00 p.m. was 2400 units + 3000 units = 5400 units.

Nursing Test Bank

Quiz #1: RN Exams Pharmacology Exams Quiz #2: RN Exams Medical-Surgical Exams Quiz #3: RN Exams Fundamentals Exams Quiz #4: RN Exams Maternal-Newborn Exams Quiz #5: RN Exams Anatomy and Physiology Exams Quiz #6: RN Exams Obstetrics and Pediatrics Exams Quiz #7: RN Exams Fluid and Electrolytes Exams Quiz #8: RN Exams Community Health Exams Quiz #9: RN Exams Promoting Health across the lifespan Exams Quiz #10: RN Exams Multidimensional care Exams

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

Naxlex Comprehensive Predictor Exams

Quiz #1: Naxlex RN Comprehensive online practice 2019 B with NGN Quiz #2: Naxlex RN Comprehensive Predictor 2023 Quiz #3: Naxlex RN Comprehensive Predictor 2023 Exit Exam A Quiz #4: Naxlex HESI Exit LPN Exam Quiz #5: Naxlex PN Comprehensive Predictor PN 2020 Quiz #6: Naxlex VATI PN Comprehensive Predictor 2020 Quiz #8: Naxlex PN Comprehensive Predictor 2023 - Exam 1 Quiz #10: Naxlex HESI PN Exit exam Quiz #11: Naxlex HESI PN EXIT Exam 2

Free Nursing Study Resources

Correct Answer is C

Explanation

The correct answer is choice C, 3 tablets. To calculate the number of tablets, divide the ordered dose by the available dose:

75 mg ÷ 25 mg = 3

The nurse should administer 3 tablets of Coumadin 25 mg to the patient to give a total dose of 75 mg.

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 patient with deep vein thrombosis has heparin ordered. Heparin 25,000 units in 250 mL D5W infuses at a rate of 12 mL/hr from 9:00 a.m. to 11:00 a.m. and 10 mL/hr from 11:00 a.m. to 2:00 p.m. What is the total amount of heparin, in units, that the patient received from 9:00 a.m. to 2:00 p.m.?

Nursing Test Bank

Naxlex Comprehensive Predictor Exams

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?

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

A physician orders the patient methylprednisolone sodium succinate (Solu- Medrol) 80 mg IV every 4 hours for lung inflammation. The single-dose vial yields 1 g/8 mL. How many mL should the nurse administer?

Cefuroxime is available as a suspension of 25 mg in 2 mL. A mother informs a nurse that she gives her child 2 tsp of the suspension once a day orally. What is the dose that the child receives?

A physician orders Tylenol 3 (codeine/APAP) 30 mg by mouth every 4-6 hours as needed for pain. The nurse has Tylenol 3 available as 30/300 mg tablets. How many tablets should the nurse administer to the patient?

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 patient is ordered 5 mg of IV Lopressor (metoprolol tartrate) to be administered over 60 seconds. The concentration is 1 mg/1 mL. How many milliliters per minute should the nurse administer to the patient?

An order is received for Principen (ampicillin) 25 mg/kg IV for a toddler who weighs 22 lb, the dose is to be infused over 30 minutes. The ampicillin dose arrives from the pharmacy prepared in 50 mL of IV solution. How many milliliters per hour should be administered?

A nurse has to administer 10 mcg/kg of digoxin to a client who weighs 30 lb. The nurse has available digoxin 1 mg/mL. How many mL would the nurse administer to the child?

A client is ordered Mylanta 1 tablespoon by mouth after meals and at bedtime. How many milliliters should the client take with each dose?

A patient with deep vein thrombosis has heparin ordered. Heparin 25,000 units in 250 mL D5W infuses at a rate of 12 mL/hr from 9:00 a.m. to 11:00 a.m. and 10 mL/hr from 11:00 a.m. to 2:00 p.m.
What is the total amount of heparin, in units, that the patient received from 9:00 a.m. to 2:00 p.m.?