Nursing Elites

1. The nurse is teaching a client about sleep and gives background information on normal sleep patterns. Which of the following substances promotes sleep?

• A. serotonin
• B. cortisol
• C. alcohol
• D. narcotics

Correct answer: A

Rationale: Serotonin is a substance found in the body that promotes sleep. It plays a role in the synthesis of a hypnogenic factor that directly induces sleep. Cortisol is a stress hormone that can disrupt sleep patterns. Alcohol can disrupt REM sleep and negatively impact sleep quality. Narcotics, like alcohol, can interfere with sleep architecture and lead to poor quality sleep. Therefore, the correct answer is serotonin as it is associated with promoting sleep, while the other substances listed can have negative effects on sleep patterns.

2. The nurse is preparing task assignments for the day. Which task should the nurse assign to a nursing assistant?

• A. Monitoring for bleeding for a client who has just undergone cardiac catheterization
• B. Assisting a client who is getting up to ambulate for the first time after surgery
• C. Providing oral care to an unconscious client who requires oral care
• D. Completing the preoperative checklist for a client scheduled for a liver biopsy

Correct answer: C

Rationale: When delegating tasks, the nurse must consider the state nursing practice act guidelines and job descriptions. Providing oral care to an unconscious client is a task suitable for delegation to a nursing assistant. The nurse should give clear instructions on adapting the procedure for the client's needs and the signs of complications to watch for. Monitoring for bleeding after cardiac catheterization necessitates immediate nursing assessment, which requires critical thinking and intervention that exceeds a nursing assistant's scope of practice. Assisting a client with ambulation post-surgery carries the risk of orthostatic hypotension and should be performed by a licensed nurse. Completing a preoperative checklist for a client scheduled for a liver biopsy involves critical assessment and preparation that are within the nurse's scope of practice.

3. The graduate licensed practical nurse is assigned to care for the client on ventilator support, pending organ donation. Which goal should receive priority?

• A. Maintain the client's systolic blood pressure at 70mmHg or greater
• B. Maintain the client's urinary output greater than 300cc per hour
• C. Maintain the client's body temperature above 33�F rectal
• D. Maintain the client's hematocrit below 30%

Correct answer: A

Rationale: When caring for a client on ventilator support pending organ donation, maintaining the systolic blood pressure at 70mmHg or greater is crucial to ensure a proper blood supply to the donor organ. This goal is a priority to maintain the viability of the organ for donation. Choices B, C, and D are incorrect because they are unnecessary and not directly related to the immediate goal of organ donation. Maintaining urinary output, body temperature, or hematocrit levels are not the primary concerns in this situation.

4. What is the term for the tendency of a drug to combine with its receptor?

• A. potency
• B. efficacy
• C. kinetics
• D. affinity

Correct answer: D

Rationale: The correct answer is 'affinity.' Affinity refers to the close relationship or mutual attraction between a drug and its receptor, indicating the strength of the drug-receptor bonding. Potency (Choice A) is related to the dose of a drug needed to produce a specific effect. Efficacy (Choice B) refers to a drug's ability to generate the desired effect. Kinetics (Choice C) deals with forces affecting the motion of material bodies or changes in a system, which is not directly associated with the bonding between a drug and its receptor.

5. All of the following are causes of vaginal bleeding in late pregnancy except:

• A. Placenta previa.
• B. Eclampsia.
• C. Abruptio placentae.
• D. Uterine rupture.

Correct answer: B

Rationale: The correct answer is B: Eclampsia. Eclampsia is a disorder of pregnancy characterized by hypertension, proteinuria, and edema. This condition can cause seizures and/or coma but does not typically present with vaginal bleeding. Choices A, C, and D are abnormal conditions that can cause bleeding, particularly in the third trimester. Placenta previa (choice A) is a condition where the placenta partially or completely covers the cervix, leading to vaginal bleeding. Abruptio placentae (choice C) is the premature separation of the placenta from the uterine wall, causing vaginal bleeding. Uterine rupture (choice D) is a serious obstetrical emergency where the uterus tears during pregnancy or childbirth, resulting in severe bleeding.

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