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. A client with Schizophrenia is taking Risperidone. Which of the following instructions should the nurse include in the teaching?

Correct answer: B

Rationale: The correct instruction the nurse should provide to the client taking Risperidone for Schizophrenia is to notify the provider if they develop breast enlargement. Risperidone can lead to an increase in prolactin levels, causing gynecomastia (breast enlargement) and galactorrhea. Therefore, it is crucial for the client to report these manifestations to the healthcare provider for appropriate management. Choices A, C, and D are incorrect. Increasing snack intake to prevent weight loss is not a specific concern related to Risperidone. Mild seizures are not a common side effect of Risperidone, so this instruction is unnecessary. Risperidone is more likely to cause sexual side effects like decreased libido rather than an increase.

3. A client is being taught about taking Tetracycline to treat a GI infection caused by Helicobacter pylori. Which of the following statements should indicate to the nurse that the client understands the instructions?

Correct answer: B

Rationale: The correct answer is B. Diarrhea can indicate the development of a suprainfection, which can be serious. Therefore, it is essential for the client to notify the healthcare provider if they experience diarrhea while taking Tetracycline to treat a GI infection caused by Helicobacter pylori. Choices A, C, and D are incorrect because taking Tetracycline with milk can reduce its absorption, discontinuing the medication prematurely can lead to treatment failure, and taking it just before bedtime may increase the risk of esophageal irritation due to the potential reflux of the medication.

4. A client has a fungal infection and a new prescription for amphotericin B. Which of the following laboratory values should the nurse report to the provider before initiating the medication?

Correct answer: C

Rationale: An elevated BUN level of 55 mg/dL should be reported before starting amphotericin B due to its nephrotoxic effects. Amphotericin B can cause kidney damage, and an elevated BUN indicates impaired kidney function, increasing the risk of further renal damage with this medication. Sodium, potassium, and glucose levels are not directly associated with the nephrotoxic effects of amphotericin B, making choices A, B, and D incorrect.

5. When should Montelukast be taken?

Correct answer: B

Rationale: Montelukast should be taken daily in the evening to effectively manage asthma symptoms. Taking it at the same time each day helps maintain a consistent level of the medication in the body, providing optimal control over asthma symptoms and inflammation. Choice A is incorrect because Montelukast should not be taken specifically before exercise, but rather daily. Choice C is incorrect because although taking Montelukast two hours before exercise is not necessary, taking it daily in the evening is essential for its effectiveness. Choice D is incorrect as Montelukast should be taken daily to manage asthma.

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