Nursing Elites

1. A client with a diagnosis of myocardial infarction (MI) is being treated. Which laboratory value would be most concerning?

• A. Troponin level of 0.5 ng/mL
• B. Creatine kinase-MB (CK-MB) of 5.0 ng/mL
• C. Serum potassium of 4.5 mEq/L
• D. Blood glucose of 180 mg/dL

Correct answer: A

Rationale: A troponin level of 0.5 ng/mL is elevated, indicating myocardial damage, making it the most concerning finding in a client with a myocardial infarction (MI). Troponin is a highly specific marker for cardiac muscle damage, and elevated levels suggest ongoing injury to the heart muscle. While Creatine kinase-MB (CK-MB) is also a cardiac enzyme, troponin is more specific and sensitive for myocardial damage. Serum potassium and blood glucose levels are important parameters to monitor in MI patients, but in this scenario, the elevated troponin level takes precedence as it directly reflects cardiac injury.

2. A nurse is preparing to administer enoxaparin subcutaneously. Which of the following actions should the nurse take?

• A. Administer the medication with the needle at a 45-degree angle.
• B. Administer the medication with the needle at a 90-degree angle.
• C. Administer the medication with the needle at a 30-degree angle.
• D. Administer the medication with the needle at a 15-degree angle.

Correct answer: B

Rationale: Enoxaparin should be administered with the needle at a 90-degree angle to ensure proper subcutaneous delivery. Choice B is correct as it aligns with the recommended angle for subcutaneous injections. Administering enoxaparin at a 45-degree angle (Choice A), 30-degree angle (Choice C), or 15-degree angle (Choice D) would not be appropriate and may lead to improper administration or absorption of the medication.

3. A health care provider has prescribed isoniazid (Laniazid) for a client. Which instruction should the LPN give the client about this medication?

• A. Prolonged use does not typically cause dark concentrated urine.
• B. It is not necessary to take the medication on an empty stomach for optimal absorption.
• C. Avoid taking the medication with aluminum hydroxide to minimize GI upset.
• D. Drinking alcohol daily can cause drug-induced hepatitis.

Correct answer: D

Rationale: The correct answer is D. When taking isoniazid, alcohol consumption should be avoided as it can increase the risk of liver damage, potentially leading to drug-induced hepatitis. Choices A, B, and C are incorrect. Prolonged use of isoniazid does not typically cause dark concentrated urine; it is not necessary to take the medication on an empty stomach for optimal absorption; and it is not recommended to take isoniazid with aluminum hydroxide to minimize GI upset.

4. A male Native American presents to the clinic with complaints of frequent abdominal cramping and nausea. He states that he has chronic constipation and had not had a bowel movement in five days, despite trying several home remedies. Which intervention is most important for the nurse to implement?

• A. Evaluate the stool samples for the presence of blood
• B. Assess for the presence of an impaction
• C. Determine which home remedies were used
• D. Obtain a list of prescribed medications

Correct answer: B

Rationale: Assessing for impaction is crucial as it is a common cause of constipation and abdominal discomfort. In this scenario, the patient's symptoms of chronic constipation and no bowel movement for five days despite trying home remedies indicate a potential impaction that needs to be assessed. Evaluating stool samples for blood, determining the home remedies used, or obtaining a list of prescribed medications, while potentially relevant, are not as urgent as assessing for impaction in this situation.

5. The LPN/LVN mixes 50 mg of Nipride in 250 ml of D5W and plans to administer the solution at a rate of 5 mcg/kg/min to a client weighing 182 pounds. Using a drip factor of 60 gtt/ml, how many drops per minute should the client receive?

• A. 31 gtt/min.
• B. 62 gtt/min.
• C. 93 gtt/min.
• D. 124 gtt/min.

Correct answer: D

Rationale: To calculate the drops per minute for the client, first, convert the weight from pounds to kilograms by dividing 182 by 2.2, which equals 82.72 kg. Then, calculate the dose in mcg/min by multiplying the weight in kg by the rate (82.72 kg * 5 mcg/kg/min = 413.6 mcg/min). Next, convert 50 mg to mcg (50 mg * 1000 = 50,000 mcg). Divide the total mcg (50,000 mcg) by the dose per minute (413.6 mcg/min) to get approximately 121 gtt/min. However, since the drip factor is 60 gtt/ml, the correct answer is 124 gtt/min, ensuring the accurate administration rate of the medication. Therefore, choice 'D' is the correct answer. Choices 'A', 'B', and 'C' are incorrect as they do not accurately reflect the calculated drops per minute based on the given information.

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