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. When taking Digoxin, low levels of what can cause toxicity?

Correct answer: A

Rationale: Low potassium levels can lead to Digoxin toxicity. Digoxin competes with potassium for binding sites on the sodium-potassium pump. When potassium levels are low, there is an increased risk of Digoxin binding and toxicity. Choice B (Calcium) is incorrect because low calcium levels are not directly linked to Digoxin toxicity. Choice C (Sodium) is incorrect as low sodium levels do not cause Digoxin toxicity. Choice D (Magnesium) is incorrect as low magnesium levels do not contribute to Digoxin toxicity.

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

Correct answer: A

Rationale: The correct answer is A: 'Take the medication with meals and snacks.' Pancrelipase should be taken with meals and snacks to aid in the digestion of fats, proteins, and carbohydrates. This timing ensures that the medication functions optimally by assisting in the digestion process when food is present in the gastrointestinal system. Choice B is incorrect because urine discoloration is not a common side effect of Pancrelipase. Choice C is incorrect as there is no specific need to increase high-calcium foods with Pancrelipase. Choice D is also incorrect as avoiding dairy products is not necessary when taking Pancrelipase.

4. A client in an outpatient facility is taking Acarbose for type 2 Diabetes Mellitus. Which of the following laboratory tests should the nurse plan to monitor?

Correct answer: D

Rationale: The correct answer is D: Liver function test. Acarbose, used for type 2 Diabetes Mellitus, can lead to liver toxicity with long-term use. Monitoring liver function tests periodically is crucial to detect any signs of liver dysfunction early and prevent complications. Choices A, B, and C are incorrect as Acarbose does not directly affect WBC, serum potassium, or platelet count levels.

5. A client who has been taking prednisone to treat asthma is advised to discontinue the medication. The client should be instructed to reduce the dose gradually to prevent which of the following adverse effects?

Correct answer: B

Rationale: Abruptly stopping prednisone can result in adrenocortical insufficiency due to suppression of the adrenal glands. Gradually tapering the dose helps the body adjust and resume its natural cortisol production, preventing adrenal insufficiency. Choice A, hyperglycemia, is a possible adverse effect of prednisone, but it is not the primary reason for gradual tapering. Severe dehydration (Choice C) and rebound pulmonary congestion (Choice D) are not typically associated with discontinuing prednisone.

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