Nursing Elites

1. Which of the following white blood cells is the smallest and can be involved in humoral immunity?

• A. Lymphocyte
• B. Monocyte
• C. Basophil
• D. Erythrocyte

Correct answer: A

Rationale: The correct answer is 'Lymphocyte.' Lymphocytes are the smallest type of white blood cells and play a crucial role in humoral immunity by producing antibodies. Monocytes are actually the largest white blood cells and are involved in phagocytosis rather than humoral immunity. Basophils are a type of granulocyte involved in allergic reactions, and erythrocytes are red blood cells responsible for oxygen transport, not part of the immune system.

2. A client with adrenal insufficiency has a potassium level of 7.2 mEq/L. Which of the following signs or symptoms might the client exhibit with this result?

• A. Peaked T waves on the ECG
• B. Muscle spasms
• C. Constipation
• D. A prominent U wave on the ECG

Correct answer: A

Rationale: A client with hyperkalemia may exhibit peaked T waves on an electrocardiogram. This manifestation is an early sign of high potassium levels, but diagnosis should not be based on this aspect alone. Untreated, hyperkalemia can lead to progressively worsening cardiac instability. Muscle spasms (Choice B) are more commonly associated with hypocalcemia. Constipation (Choice C) is not a typical sign of hyperkalemia. A prominent U wave on the ECG (Choice D) is associated with hypokalemia, not hyperkalemia.

3. Albert B. is incontinent of urine. He also wears glasses and hearing aids. His ____________lead(s) to his risk for falls.

• A. incontinence and loss of vision
• B. loss of vision
• C. incontinence
• D. loss of hearing

Correct answer: B

Rationale: Albert B. is at risk for falls due to two factors: his incontinence and his loss of vision. Loss of vision significantly impairs one's ability to navigate and avoid obstacles, thereby increasing the risk of falls. While incontinence is a risk factor for falls, the primary concern in this case is the loss of vision since it directly affects balance and safety. Therefore, the correct answer is 'loss of vision.' Choices A, C, and D are incorrect because they do not address the key factor of impaired vision leading to the risk of falls.

4. A client is diagnosed with schizophrenia. A physician orders haloperidol (Haldol) 50 mg bid, benztropine (Cogentin) 1 mg prn, and zolpidem (Ambien) 10 mg HS. Which client behavior would warrant the nurse to administer benztropine?

• A. Tactile hallucinations
• B. Tardive dyskinesia
• C. Restlessness and muscle rigidity
• D. Reports of hearing disturbing voices

Correct answer: C

Rationale: Benztropine (Cogentin) is an anticholinergic medication used to treat extrapyramidal symptoms, such as restlessness and muscle rigidity, which are common side effects of antipsychotic medications like haloperidol. Tactile hallucinations and reports of hearing disturbing voices are symptoms of schizophrenia that would typically be addressed by the antipsychotic medication (haloperidol) itself. Tardive dyskinesia, a potential side effect of long-term antipsychotic use, would require discontinuation of the antipsychotic medication rather than administration of benztropine.

5. Jaime has a diagnosis of schizophrenia with negative symptoms. In planning care for the client, Nurse Brienne would anticipate a problem with:

• A. Auditory hallucinations
• B. Bizarre behaviors
• C. Ideas of reference
• D. Motivation for activities

Correct answer: D

Rationale: In clients with negative symptoms of schizophrenia, such as Jaime, a common problem is avolition, which is the lack of motivation for activities. These 'negative' symptoms are characterized by inexpressive faces, blank looks, monotone speech, few gestures, and a seeming lack of interest in the world. Patients may also experience an inability to feel pleasure or act spontaneously. It is crucial to differentiate between the lack of expression and lack of feeling, as well as between lack of will and lack of activity. Auditory hallucinations (choice A) are positive symptoms, not typically associated with negative symptoms of schizophrenia. Bizarre behaviors (choice B) are more aligned with positive symptoms like disorganized behavior. Ideas of reference (choice C) involve incorrectly interpreting casual incidents and external events as having direct reference to oneself, which is not directly related to motivation for activities seen in negative symptoms.

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