A client is receiving intravenous (IV) vancomycin and the nurse plans to draw blood for a peak and trough to determine the serum level of the drug. Which collection times provide the best determination of these levels?

Two hours after completion of the IV dose and two hours before the next administration of the medication.

One hour after completion of the IV dose and one hour before the next administration of the medication.

Thirty minutes into the administration of the IV dose and 30 minutes before the next administration of the medication.

Immediately after completion of the IV dose and 30 minutes before the next administration of the medication.

None

Answer and Explanation

The Correct Answer is B

choice A, Drawing the peak level two hours after the IV dose is too late to capture the drug's highest serum concentration. Similarly, drawing the trough two hours before the next dose does not reflect the lowest drug level accurately.
Choice B, Drawing the peak level one hour after completion of the IV dose ensures an accurate measurement of the highest serum concentration, as vancomycin typically peaks within this time frame. Drawing the trough one hour before the next dose ensures the lowest concentration of the drug is measured, providing precise therapeutic monitoring.

Choice C is incorrect because drawing blood 30 minutes into the IV dose would not allow the full dose to circulate and reach peak levels in the bloodstream.

Choice D. Drawing the peak level immediately after the completion of the IV dose is too early, as the drug needs time to distribute in the bloodstream and reach its highest concentration. While drawing the trough 30 minutes before the next dose is appropriate, the incorrect timing of the peak makes this option unsuitable.

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Correct Answer is {"A":{"answers":"A"},"B":{"answers":"C"},"C":{"answers":"B"},"D":{"answers":"A"},"E":{"answers":"B"}}

Explanation

Choice A rationale: Indicated. This is important for a client with type 1 diabetes, as counting carbohydrates helps in calculating the appropriate insulin dose and maintaining glycemic control.

Choice B rationale: Non-essential. The client is already admitted to the surgical floor and does not require restarting the IV fluids unless there is a specific medical indication.

Choice C rationale: Contraindicated. Insulin doses should be prescribed by a healthcare provider based on the patient's blood glucose levels and individual insulin requirements. The nurse should follow the prescribed insulin orders and not administer insulin without an order.

Choice D rationale: Indicated. Insulin glargine is a long-acting basal insulin used to provide a steady background insulin level throughout the day. The nurse should administer the prescribed insulin glargine dose as ordered.

Choice E rationale: Contraindicated. Insulin lispro is a rapid-acting insulin, and insulin glargine is a long-acting insulin. Mixing different types of insulin in one syringe can alter their pharmacokinetics and lead to inconsistent blood glucose control. Insulin lispro and insulin glargine should be administered separately.

A. Low sodium antacid. B. Diphenhydramine. C. Low dose aspirin. D. Acetaminophen.

Correct Answer is A

Explanation

Choice A rationale: Heartburn when lying down after dinner can be a symptom of gastroesophageal reflux disease (GERD), which is a common concern in individuals with heart failure. Antacids are commonly used to relieve heartburn by neutralizing stomach acid. For patients with heart failure, it is essential to use low sodium antacids because excess sodium intake can worsen fluid retention and lead to increased heart failure symptoms. Low sodium antacids are specifically designed to minimize the sodium content, making them a suitable choice for individuals with heart failure.

Choice B rationale: Diphenhydramine is an antihistamine commonly used for allergy relief and as a sleep aid due to its sedative effects. However, it is not an appropriate choice for relieving heartburn. Diphenhydramine does not have any direct effect on stomach acid, and it is not indicated for GERD or heartburn relief.

Choice C rationale: Low dose aspirin is primarily used as an antiplatelet agent to reduce the risk of blood clots and is commonly prescribed for patients with certain cardiovascular conditions. However, it is not a suitable medication for relieving heartburn. In fact, aspirin can irritate the stomach lining and worsen symptoms of heartburn and gastric irritation.

Choice D rationale: Acetaminophen is a common over-the-counter pain reliever and fever reducer. While it is useful for managing pain and fever, it does not have any effect on stomach acid and is not indicated for heartburn relief. Acetaminophen is not an appropriate choice for addressing heartburn symptoms.

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A client is receiving intravenous (IV) vancomycin and the nurse plans to draw blood for a peak and trough to determine the serum level of the drug. Which collection times provide the best determination of these levels?

Nursing Test Bank

Naxlex Comprehensive Predictor Exams

Correct Answer is {"A":{"answers":"A"},"B":{"answers":"C"},"C":{"answers":"B"},"D":{"answers":"A"},"E":{"answers":"B"}}

Explanation

A male client with a history of heart failure (HF) complains of heartburn when he lies down after dinner. The home health nurse should encourage the client to talk to the healthcare provider about using which over-the-counter medication to relieve this problem?

Correct Answer is A

Explanation

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