A nurse is preparing to administer potassium 0.4 mEq/kg/hr to a newborn who weighs 6.7 lb. Available is potassium 10 mEq in 0.9% sodium chloride 100 mL. The nurse should set the IV pump to deliver how many mL/hr? (Round the answer to the nearest tenth. Use a leading zero if it applies. Do not use a trailing zero.)

Answer and Explanation

The Correct Answer is ["12.2"]

To calculate the IV pump setting, first convert the newborn's weight from pounds to kilograms, knowing that 1 pound is equivalent to 0.453592 kilograms. The newborn weighs 6.7 pounds, which is approximately 3.039 kg (6.7 lb * 0.453592 kg/lb). Next, calculate the total amount of potassium needed per hour by multiplying the newborn's weight in kilograms by the prescribed dose: 0.4 mEq/kg/hr * 3.039 kg = 1.2156 mEq/hr. Since the available potassium is 10 mEq in 100 mL, this means there is 0.1 mEq/mL. To find out how many mL/hr to administer, divide the total mEq needed per hour by the concentration: 1.2156 mEq/hr ÷ 0.1 mEq/mL = 12.156 mL/hr. Rounded to the nearest tenth, the IV pump should be set to deliver 12.2 mL/hr.

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 A

Explanation

A. Losartan is contraindicated in pregnancy due to its potential harmful effects on the fetus, and thus requires clarification with the provider in the postpartum period.
B. Ferrous fumarate is a standard supplement given postpartum to replenish iron stores and does not require clarification.
C. Prochlorperazine rectal suppositories are used PRN for nausea and do not typically require clarification unless there are specific concerns.
D. Docusate sodium is a stool softener commonly used postpartum and does not require clarification.

Correct Answer is ["105"]

Explanation

To calculate the IV pump setting, we need to convert the dosage from mg/min to mg/hr, and then find out how many mL/hr this corresponds to, given the concentration of the solution. First, multiply the ordered dose by 60 minutes to convert to an hourly rate: 7 mg/min * 60 min/hr = 420 mg/hr. Next, since we have 1 g of lidocaine in 250 mL, we convert 1 g to mg, which is 1000 mg. Now, we have 1000 mg in 250 mL, so we need to find out how many mL are needed for 420 mg. Using a proportion, we have 1000 mg/250 mL = 420 mg/x mL. Solving for x gives us x = (420 mg * 250 mL) / 1000 mg, which equals 105 mL. Therefore, the nurse should set the IV pump to deliver 105 mL/hr.

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

Nursing Test Bank

Naxlex Comprehensive Predictor Exams

A nurse is admitting a client to the postpartum unit and is reviewing the client's prescribed medications. The nurse should clarify which of the following prescriptions with the provider?

Correct Answer is A

Explanation

Correct Answer is ["105"]

Explanation

A nurse is caring for a client who is in the third stage of labor and has a prescription for IV oxytocin administration following expulsion of the placenta. Which of the following clinical manifestations should the nurse expect as a therapeutic effect of the medication?

A nurse is preparing to administer glyburide 5 mg PO to a client who has gestational diabetes. Available is glyburide 2.5 mg tablets. How many tablets should the nurse administer? (Round the answer to the nearest whole number. Use a leading zero if it applies. Do not use a trailing zero.)

The order from the provider is: start a maintenance dose of magnesium sulfate of 4 g per hour. The pharmacy provides you with a 1 liter bag with 30 g of magnesium sulfate added. What is the rate on the infusion pump of the maintenance dose?

A nurse is caring for a client who delivered by cesarean birth 6 hr ago. The nurse notes a steady trickle of vaginal bleeding that does not stop with fundal massage. Which of the following actions should the nurse take?

A nurse is caring for a client who is postpartum and has a prescription for oxytocin 10 units IM one time only for the saturation of a perineal pad in 15 min or less. How should the nurse interpret this prescription?