Nursing Elites

1. The nurse is teaching a nursing student about the minimal effective concentration (MEC) of antibiotics. Which statement by the nursing student indicates understanding of this concept?

• A. A serum drug level greater than the MEC ensures that the drug is bacteriostatic.
• B. A serum drug level greater than the MEC broadens the spectrum of the drug.
• C. A serum drug level greater than the MEC helps eradicate bacterial infections.
• D. A serum drug level greater than the MEC increases the therapeutic index.

Correct answer: C

Rationale: The MEC is the minimum amount of drug needed to halt the growth of a microorganism. A level greater than the MEC helps eradicate infections. Drugs at or above the MEC are usually bactericidal, not bacteriostatic. Therefore, choice A is incorrect. Broadening the spectrum of a drug refers to its range of activity against different microorganisms, which is not directly related to MEC. Thus, choice B is incorrect. Increasing the therapeutic index involves maximizing the effectiveness of a drug while minimizing its toxicity, which is not specifically related to MEC. Therefore, choice D is also incorrect.

2. A client with type 1 diabetes mellitus who jogs daily is being taught by a nurse about the preferred sites for insulin absorption. What is the most appropriate site for this client?

• A. Arms
• B. Legs
• C. Abdomen
• D. Iliac crest

Correct answer: C

Rationale: The abdomen is the most appropriate site for insulin absorption in a client who jogs. When a client is involved in physical activity like jogging, the abdomen is preferred as it provides more consistent absorption compared to the arms or legs, which can have altered absorption rates due to increased blood flow during exercise. The iliac crest is not a common site for insulin injections and may not provide optimal absorption rates compared to the abdomen.

3. What is the most common symptom of hypoglycemia that the nurse should teach the diabetic client to recognize?

• A. Nervousness
• B. Anorexia
• C. Kussmaul's respirations
• D. Bradycardia

Correct answer: A

Rationale: Nervousness is the most common symptom of hypoglycemia. It is often accompanied by other signs such as weakness, perspiration, confusion, and palpitations. Anorexia (lack of appetite) is not a typical symptom of hypoglycemia; it is more commonly associated with hyperglycemia. Kussmaul's respirations are a deep and labored breathing pattern seen in diabetic ketoacidosis, not hypoglycemia. Bradycardia (slow heart rate) is not a typical symptom of hypoglycemia; tachycardia (fast heart rate) is more commonly associated with hypoglycemia due to the release of catecholamines in response to low blood sugar.

4. A client’s baseline vital signs are temperature 98°F oral, pulse 74 beats/min, respiratory rate 18 breaths/min, and blood pressure 124/76 mm Hg. The client suddenly spikes a fever to 103°F. Which of the following respiratory rates would the nurse anticipate as part of the body’s response to the change in client status?

• A. 12 breaths/min
• B. 16 breaths/min
• C. 18 breaths/min
• D. 22 breaths/min

Correct answer: D

Rationale: When a client experiences a fever, there is an increase in body temperature, leading to a higher metabolic rate and oxygen demand. As a result, the respiratory rate typically increases to meet the body's increased oxygen needs. Therefore, in response to the fever spike from 98°F to 103°F, the nurse would anticipate a higher respiratory rate. Choices A, B, and C are incorrect because a decrease in body temperature, not an increase as seen in fever, would lead to a decrease in respiratory rate to conserve energy and oxygen consumption.

5. An older female client has normal saline infusing at 45 mL/hour. She complains of pain at the insertion site of the IV catheter. There is no redness or edema around the IV site. Which action should the nurse take?

• A. Determine which IV medications have recently been administered.
• B. Explain that without redness or edema, there is no need to re-start the IV.
• C. Consult with the healthcare provider about the best location to start a new IV.
• D. Convert the IV to a saline lock and continue to monitor the site.

Correct answer: D

Rationale: Converting the IV to a saline lock and continuing to monitor the site is the correct action in this scenario. When a client complains of pain at the IV insertion site without redness or edema, it may indicate phlebitis or irritation. Replacing the IV may not be necessary if there are no signs of infection or infiltration. Determining the IV medications administered or consulting with the healthcare provider to start a new IV are not immediate actions required for pain management at the insertion site. Therefore, the most appropriate intervention is to convert the IV to a saline lock and closely observe for any changes or complications.

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