a nurse is preparing to administer heparin 15000 units subcutaneously every 12 hr the amount available is heparin injection 20000 unitsml how many ml
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Nursing Elites

ATI RN

ATI Pharmacology Proctored Exam 2023

1. A healthcare professional is preparing to administer heparin 15,000 units subcutaneously every 12 hours. The available heparin injection is 20,000 units/mL. How many milliliters should the healthcare professional administer per dose?

Correct answer: A

Rationale: To calculate the volume to administer, use the formula: Desired dose / Concentration = Volume to administer. In this case, (15,000 units / 20,000 units/mL) = 0.75 mL. Since the volume needs to be rounded up to the nearest tenth, the correct answer is 0.8 mL. Choice B (0.75 mL) is incorrect because it does not account for rounding up the volume. Choices C (0.5 mL) and D (1 mL) are incorrect as they do not reflect the precise calculation based on the given concentration and desired dose.

2. While teaching a client with a new prescription for Warfarin, which of the following statements by the client indicates a need for further teaching?

Correct answer: C

Rationale: The correct answer is C because Warfarin interacts with vitamin K, found in green leafy vegetables, not potassium. The client should avoid consuming large amounts of foods high in vitamin K to maintain the effectiveness of Warfarin therapy. Increasing potassium intake is not a concern related to Warfarin therapy, so this statement indicates a need for further teaching. Choices A, B, and D are all correct statements indicating good understanding of Warfarin therapy. Avoiding large amounts of green leafy vegetables helps prevent fluctuations in vitamin K levels, taking medication consistently maintains therapeutic levels, and reporting any signs of bleeding is essential for monitoring and managing potential side effects of Warfarin.

3. A client has a new prescription for Nitrofurantoin. Which of the following instructions should be included?

Correct answer: A

Rationale: Nitrofurantoin should be taken with food to enhance absorption and reduce gastrointestinal side effects. Taking it with a meal or a snack can help minimize stomach upset. Instructing the client to take the medication with food ensures optimal effectiveness and tolerability of the drug. Choice B is incorrect because there is no specific interaction between Nitrofurantoin and dairy products. Choice C is incorrect as there is no requirement to take Nitrofurantoin at bedtime. Choice D is also incorrect as increasing vitamin C intake is not necessary or relevant to taking Nitrofurantoin.

4. A client has a new prescription for Levothyroxine. Which of the following instructions should the nurse include?

Correct answer: C

Rationale: Levothyroxine should be taken on an empty stomach to increase absorption and efficacy. Taking it with food or antacids can interfere with its absorption. By taking Levothyroxine on an empty stomach, the client ensures optimal absorption and effectiveness of the medication.

5. A client is to receive Tetracaine before a Bronchoscopy. Which of the following actions should the nurse include in the plan of care?

Correct answer: A

Rationale: The correct action for the nurse to include in the plan of care is to keep the client NPO until the pharyngeal response returns. Tetracaine can affect the gag reflex, so it is important to prevent aspiration by maintaining the client NPO until the pharyngeal response is normal, which typically takes about 1 hour. Monitoring for the return of the gag reflex is crucial to prevent complications from aspiration during the first oral intake after the procedure. Choices B, C, and D are incorrect because they are not directly related to the effects of Tetracaine or the bronchoscopy procedure.

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