which laboratory test would be the least effective in making the diagnosis of a myocardial infarction
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Nursing Elites

NCLEX-PN

Nclex Practice Questions 2024

1. Which laboratory test would be the least effective in diagnosing a myocardial infarction?

Correct answer: A

Rationale: AST, choice A, would be the least effective in diagnosing a myocardial infarction as it is not specific for this condition. Troponin, CK-MB, and myoglobin (choices B, C, and D) are more specific markers for myocardial infarction. Troponin is considered the gold standard due to its cardiac specificity. CK-MB is also specific to the heart, and its isoenzyme levels elevate post-heart damage. Myoglobin, although elevated in myocardial infarction, is not as specific as troponin and CK-MB and can also increase in conditions like burns and muscle trauma. Therefore, AST is the least effective choice for diagnosing a myocardial infarction.

2. What type of relief behavior is Ashley using to cope with emotional conflict?

Correct answer: B

Rationale: Ashley is somatizing by experiencing emotional conflict as physical symptoms associated with severe anxiety. Somatizing involves converting emotions into physical symptoms. Acting out involves behaviors like anger, crying, and verbal abuse, not physical symptoms. Withdrawal is when one withdraws psychic energy in response to anxiety, not converting emotions into physical symptoms. Problem-solving occurs when anxiety is identified and the underlying need is addressed, not converting emotions into physical symptoms.

3. A client goes to the mental health center for difficulty concentrating, insomnia, and nightmares. The client reports being raped as a child. The nurse should assess the client for further signs of:

Correct answer: C

Rationale: Given the history of childhood sexual abuse and the presenting symptoms of difficulty concentrating, insomnia, and nightmares, the nurse should assess the client for post-traumatic stress disorder (PTSD). Childhood sexual abuse is strongly associated with adult-onset depression and an increased risk for PTSD. Individuals with PTSD may exhibit re-experiencing symptoms such as flashbacks, nightmares, and heightened reactions to trauma triggers. They may also display emotional numbing, avoidance behaviors, and increased arousal symptoms like difficulty sleeping and hypervigilance. Generalized anxiety disorder (Choice A) is characterized by excessive worry and anxiety about various events or activities, not necessarily tied to a specific trauma. Schizophrenia (Choice B) is a severe mental disorder characterized by distortions in thinking, perception, emotions, and behavior, unrelated to the traumatic event described. Bipolar disorder (Choice D) involves mood swings between depressive and manic episodes, and its symptoms differ from those typically seen in PTSD.

4. The nurse notes the patient care assistant looking through the personal items of the client with cancer. Which action should be taken by the registered nurse?

Correct answer: B

Rationale: The appropriate action for the registered nurse in this scenario is to report the behavior to the charge nurse. This allows for proper investigation and intervention. Inappropriate actions include notifying the police directly without following the chain of command (Choice A), monitoring without immediate action (Choice C), and confronting the assistant without involving a superior (Choice D). By reporting to the charge nurse, the situation is escalated appropriately within the healthcare setting, ensuring the well-being and safety of the client.

5. A nurse provides information about feeding to the mother of a 6-month-old infant. Which statement by the mother indicates an understanding of the information?

Correct answer: B

Rationale: The correct answer is B: 'Egg white should not be given to my infant because of the risk for an allergy.' Egg white, even in small quantities, is not recommended for infants until the end of the first year of life due to its common allergenic potential. Choice A is incorrect because while meats are important for iron, they are not typically introduced to infants until around 6-8 months. Choice C is incorrect because food should never be mixed with formula in the bottle as it may lead to feeding difficulties and inaccurate monitoring of intake. Choice D is incorrect because fluoride supplementation may be required around 6 months depending on the infant's fluoride intake from water. Introducing solid foods like rice cereal, fruits, or vegetables is usually done around 5-6 months, following healthcare provider recommendations.

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