Nursing Elites

1. A client who is receiving digoxin (Lanoxin) daily has a serum potassium level of 3.0 mEq/L and is complaining of anorexia. A healthcare provider prescribes a digoxin level to rule out digoxin toxicity. A nurse checks the results, knowing that which of the following is the therapeutic serum level (range) for digoxin?

• A. 3 to 5 ng/mL
• B. 0.5 to 2 ng/mL
• C. 1.2 to 2.8 ng/mL
• D. 3.5 to 5.5 ng/mL

Correct answer: B

Rationale: The therapeutic serum level for digoxin ranges from 0.5 to 2 ng/mL. This range is considered optimal for therapeutic effects while minimizing the risk of toxicity. Levels above 2 ng/mL may lead to digoxin toxicity, which can manifest as anorexia among other symptoms. Therefore, the nurse should be vigilant in monitoring the digoxin levels to ensure the client's safety and therapeutic effectiveness of the medication.

2. The healthcare provider prescribes exenatide (Byetta) for a client with type 1 diabetes mellitus who takes insulin. What is the appropriate intervention for the nurse?

• A. Administer the medication within 60 minutes before the morning and evening meal.
• B. Withhold the medication and question the prescription with the healthcare provider.
• C. Monitor the client for gastrointestinal side effects after administration of the medication.
• D. Withdraw the insulin from the Penlet into an insulin syringe to prepare for administration.

Correct answer: B

Rationale: Exenatide (Byetta) is specifically indicated for the treatment of type 2 diabetes mellitus and is not recommended for clients with type 1 diabetes mellitus who are taking insulin. Choice A is incorrect because exenatide should not be administered to a client with type 1 diabetes mellitus who takes insulin. Choice C is not the most appropriate initial action when the prescription is not suitable for the client. Choice D is unrelated to the administration of exenatide. Therefore, the appropriate intervention for the nurse is to withhold the medication and question the prescription with the healthcare provider to ensure the safety and appropriateness of the treatment plan for the client.

3. A child is hospitalized with a diagnosis of lead poisoning. The healthcare provider assisting in caring for the child would prepare to assist in administering which of the following medications?

• A. Activated charcoal
• B. Sodium bicarbonate
• C. Syrup of ipecac
• D. Dimercaprol (BAL in Oil)

Correct answer: D

Rationale: Dimercaprol (BAL in Oil) is a chelating agent indicated for lead poisoning. It works by binding to lead and facilitating its removal from the body. Activated charcoal is used for certain types of poisoning by adsorbing toxins, while sodium bicarbonate can be used to treat acidosis. Syrup of ipecac is no longer recommended for poison treatment due to potential risks.

4. A client has been taking isoniazid (INH) for 2 months. The client complains to a nurse about numbness, paresthesias, and tingling in the extremities. The nurse interprets that the client is experiencing:

• A. Hypercalcemia
• B. Peripheral neuritis
• C. Small blood vessel spasm
• D. Impaired peripheral circulation

Correct answer: B

Rationale: The client's symptoms of numbness, paresthesias, and tingling in the extremities indicate peripheral neuritis, a common side effect of isoniazid (INH). This condition can be managed by supplementing with pyridoxine (vitamin B6) to minimize the symptoms.

5. A client taking ethambutol (Myambutol) understands the instructions provided by the nurse if the client states that he or she will immediately report:

• A. Impaired sense of hearing
• B. Problems with visual acuity
• C. Gastrointestinal (GI) side effects
• D. Orange-red discoloration of body secretions

Correct answer: B

Rationale: The correct answer is B: Problems with visual acuity. Ethambutol is known to cause optic neuritis, leading to a decrease in visual acuity and color discrimination. Therefore, any visual changes should be reported promptly to prevent further complications. Choices A, C, and D are incorrect because ethambutol does not typically cause impaired sense of hearing, gastrointestinal side effects, or orange-red discoloration of body secretions. It is crucial for clients taking ethambutol to be aware of potential visual disturbances and report them promptly to healthcare providers.

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