Nursing Elites

1. The client with a myocardial infarction comes to the nurse's station stating that he is ready to go home because there is nothing wrong with him. Which defense mechanism is the client using?

• A. Rationalization
• B. Denial
• C. Projection
• D. Conversion reaction

Correct answer: B

Rationale: The correct answer is B: Denial. The client displaying denial refuses to acknowledge the reality of having a myocardial infarction. Rationalization (choice A) involves making excuses for behavior, not denying a condition. Projection (choice C) is attributing one's thoughts or feelings to others, not denying an illness. Conversion reaction (choice D) is converting psychological distress into physical symptoms, which is not evident in this scenario. Therefore, denial is the defense mechanism being used in this situation.

2. The client with cirrhosis of the liver is receiving Lactulose. The nurse is aware that the rationale for the order for Lactulose is:

• A. To lower the blood glucose level
• B. To lower the uric acid level
• C. To lower the ammonia level
• D. To lower the creatinine level

Correct answer: C

Rationale: Lactulose is administered to the client with cirrhosis to lower ammonia levels, as it works by acidifying the colon, trapping ammonia for elimination in the stool. Choices A, B, and D are incorrect because Lactulose does not have an effect on blood glucose, uric acid, or creatinine levels. Therefore, the correct answer is to lower the ammonia level.

3. The client with diabetes is preparing for discharge. During discharge teaching, the nurse assesses the client's ability to care for himself. Which statement made by the client would indicate a need for follow-up after discharge?

• A. "I live by myself."?
• B. "I have trouble seeing."?
• C. "I have a cat in the house with me."?
• D. "I usually drive myself to the doctor."?

Correct answer: B

Rationale: A client with diabetes who has trouble seeing would require follow-up after discharge. The lack of visual acuity for the client preparing and injecting insulin might require help. Answers A, C, and D will not prevent the client from being able to care for himself and are incorrect. Living alone (Choice A) does not necessarily indicate a need for follow-up unless there are specific concerns. Having a cat at home (Choice C) and driving to the doctor (Choice D) are not direct indicators of the client's ability to care for himself.

4. The child with seizure disorder is being treated with Dilantin (phenytoin). Which of the following statements by the patient's mother indicates to the nurse that the patient is experiencing a side effect of Dilantin therapy?

• A. "She is very irritable lately."?
• B. "She sleeps quite a bit of the time."?
• C. "Her gums look too big for her teeth."?
• D. "She has gained about 10 pounds in the last 6 months."?

Correct answer: C

Rationale: The correct answer is '"Her gums look too big for her teeth."?' Hyperplasia of the gums is a known side effect associated with Dilantin therapy. Option A, '"She is very irritable lately,"?' is not a typical side effect of Dilantin. Option B, '"She sleeps quite a bit of the time,"?' is a common side effect of Dilantin but not specific to gum hyperplasia. Option D, '"She has gained about 10 pounds in the last 6 months,"?' is not typically associated with Dilantin therapy and is unrelated to the question.

5. Narrow therapeutic index medications:

• A. are drug formulations with limited pharmacokinetic variability.
• B. have limited value and require no monitoring of blood levels.
• C. have less than a twofold difference in minimum toxic levels and minimum effective concentration in the blood
• D. have limited potency and side effects.

Correct answer: C

Rationale: The therapeutic index is the ratio between the median lethal dose and median effective dose of a drug, indicating the safety margin. Narrow therapeutic index medications have a small difference between minimum toxic levels and minimum effective concentration in the blood, making them high-risk drugs that require close monitoring to avoid toxicity. Choice A is incorrect because pharmacokinetics refer to drug absorption, distribution, metabolism, and elimination, not the therapeutic index. Choice B is incorrect because narrow therapeutic index drugs necessitate monitoring due to their narrow margin of safety. Choice D is incorrect because narrow therapeutic index drugs do not necessarily have limited potency but are characterized by a small window between efficacy and toxicity.

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