Nursing Elites

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

• A. AST
• B. Troponin
• C. CK-MB
• D. Myoglobin

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. A client receiving preoperative instructions asks questions repeatedly about when to stop eating the night before the procedure. The nurse tries to refocus the client. The nurse notes that the client is frequently startled by noises in the hall. Assessment reveals rapid speech, trembling hands, tachypnea, tachycardia, and elevated blood pressure. The client admits to feeling nervous and having trouble sleeping. Based on the assessment, the nurse documents that the client has:

• A. mild anxiety.
• B. moderate anxiety.
• C. severe anxiety.
• D. a panic attack.

Correct answer: C

Rationale: The correct answer is 'severe anxiety.' In severe anxiety, a person focuses on small or scattered details and is unable to solve problems. The client's symptoms of rapid speech, trembling hands, tachypnea, tachycardia, elevated blood pressure, feeling nervous, and having trouble sleeping indicate severe anxiety. Mild anxiety enhances the ability to learn and solve problems, while moderate anxiety narrows the perceptual field but allows the client to notice things brought to their attention. During a panic attack, a person is disorganized, hyperactive, or unable to speak or act, which is not the case in this scenario.

3. James returns home from school angry and upset because his teacher gave him a low grade on an assignment. After returning home from school, he kicks the dog. This coping mechanism is known as:

• A. denial
• B. suppression
• C. displacement
• D. fantasy

Correct answer: C

Rationale: Displacement is the transference of emotions, such as anger, to a substitute target that may be less threatening. In this scenario, James redirects his anger from the teacher to the dog. Denial is refusing to acknowledge an aspect of reality. Suppression is consciously putting aside unwanted thoughts or feelings. Fantasy involves imagining unrealistic scenarios. Therefore, in this case, the correct answer is displacement as James displaces his anger towards the dog.

4. An elderly client denies that abuse is occurring. Which of the following factors could be a barrier for the client to admit being a victim?

• A. knowledge that elder abuse is rare
• B. personal belief that abuse is deserved
• C. lack of developmentally appropriate screening tools
• D. fear of reprisal or further violence if the incident is reported

Correct answer: D

Rationale: One of the significant barriers for elderly clients to admit being victims of abuse is the fear of reprisal or further violence if the incident is reported. Elderly individuals may be afraid of the consequences of reporting abuse, such as retaliation or increased violence from the abuser. This fear can prevent them from disclosing their victimization. Choices A and C are incorrect as knowledge of the rarity of elder abuse and the availability of appropriate screening tools do not directly impact the client's willingness to admit abuse. Choice B, personal belief that abuse is deserved, may be a factor for some individuals but is not as common or impactful as the fear of reprisal or further violence.

5. A client asks the nurse if all donor blood products are cross-matched with the recipient to prevent a transfusion reaction. Which of the following always requires cross-matching?

• A. packed red blood cells
• B. platelets
• C. plasma
• D. granulocytes

Correct answer: A

Rationale: Corrected Rationale: Packed red blood cells contain antigens and antibodies that must be matched between the donor and recipient to prevent transfusion reactions. Platelets, plasma, and granulocytes do not contain red blood cells, so they do not require cross-matching. Platelets are matched based on ABO compatibility, while plasma and granulocytes are not routinely cross-matched as they lack red cell antigens.

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