Which statement indicates that the nurse understands what the half-life of a drug means?

Drugs with a short half-life have a greater risk for toxicity

Half-life is not affected by renal or hepatic function

if a medication has a long half-life. dosage times can be longer intervals & the drug remains effective

Half of the effective portion of the drug is metabolized by the liver

Answer and Explanation

The Correct Answer is C

C. The half-life of a drug refers to the time it takes for the concentration of the drug in the bloodstream to be reduced by half. If a medication has a long half-life, it means that it stays in the body for a longer period before being eliminated. This allows for less frequent dosing intervals while still maintaining therapeutic effectiveness.

A. Drugs with a short half-life are typically cleared from the body more quickly. While they may require more frequent dosing to maintain therapeutic levels, they do not necessarily have a greater risk for toxicity compared to drugs with longer half-lives. In fact, drugs with longer half-lives can accumulate in the body over time, potentially increasing the risk of toxicity.

B. The half-life of a drug can be significantly influenced by renal (kidney) and hepatic (liver) function. Impaired renal or hepatic function can prolong the half-life of a drug, leading to slower elimination and potentially increased risk of adverse effects.

D. This statement describes the concept of drug metabolism rather than the half-life. Drug metabolism refers to the biochemical alteration of drugs by enzymes, often occurring in the liver. The half-life, on the other hand, specifically relates to the elimination of the drug from the body.

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Correct Answer is C

Explanation

C. Before administering a feeding through a gastrostomy tube, it is essential to verify that the tube is patent (open and unobstructed). Tube patency ensures that the feeding formula or medication can flow freely into the stomach or intestines without encountering any blockages or resistance. The nurse should flush the tube with water to check for patency and ensure proper functioning before initiating the feeding.

A. Vital signs are typically assessed for overall health monitoring and to detect any immediate changes in the client's condition. However, they are not specifically required before every feeding via gastrostomy tube unless there are specific concerns about the client's stability.

B. This option is not typically necessary before administering a feeding through a gastrostomy tube. In fact, elevating the head of the bed to at least 30 to 45 degrees is often recommended during and after feeding to minimize the risk of aspiration. This position helps to promote digestion and reduce the likelihood of reflux or regurgitation of the feeding.

D. Assisting the client to a prone (face-down) position is unnecessary and potentially unsafe before administering a feeding through a gastrostomy tube. The recommended position for feeding via gastrostomy tube is typically semi-Fowler's position (elevated head of the bed), which helps prevent aspiration and facilitates digestion.

A. select organic canned vegetables." B. purchase lean deli meats for my sandwiches." C. purchase smoked meat products D. avoid processed foods."

Correct Answer is D

Explanation

D. Processed foods, including canned soups, snacks, and pre-packaged meals, are major sources of dietary sodium. By avoiding processed foods, the client can significantly reduce their sodium intake and better adhere to a low-sodium diet.

A. While organic vegetables may be a healthy choice for other reasons (such as reducing pesticide exposure), canned vegetables, whether organic or not, often contain added sodium for preservation. Therefore, selecting canned vegetables, even if organic, may not align with the goal of reducing sodium intake.

B. This statement suggests an understanding of choosing lower-sodium options for sandwiches. Lean deli meats, such as turkey or chicken breast, typically contain less sodium compared to processed or cured meats like salami or bologna. Opting for lean deli meats supports the client's effort to reduce sodium intake as part of a low-sodium diet.

C. This statement indicates a misunderstanding of a low-sodium diet. Smoked meats, such as smoked ham or bacon, are often high in sodium due to the curing and smoking process. Including smoked meat products in the diet would likely increase sodium intake, which contradicts the goal of reducing sodium.

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Which statement indicates that the nurse understands what the half-life of a drug means?

Nursing Test Bank

Naxlex Comprehensive Predictor Exams

The nurse is preparing to administer a feeding to a client with a gastrostomy tube. What should the nurse do before providing this feeding?

Correct Answer is C

Explanation

A nurse is providing teaching for a client who is placed on a low-sodium diet. Which statement made by the client demonstrates an understanding of dietary teaching? "I will:

Correct Answer is D

Explanation

Which example best illustrates the principle of the nurse "knowing" the client? The nurse:

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