Nursing Elites

1. What is the primary role of the sinoatrial (SA) node in the heart?

• A. Pacemaker of the heart
• B. Blood pressure regulation
• C. Electrical conduction delay
• D. Stimulating muscle contraction

Correct answer: A

Rationale: The correct answer is A: Pacemaker of the heart. The SA node, known as the natural pacemaker, initiates the electrical impulses that set the rhythm for the heartbeat. It is responsible for coordinating the heart's contractions by generating electrical signals at regular intervals. Choice B is incorrect as the SA node's primary function is not related to blood pressure regulation. Choice C is incorrect as the SA node does not cause electrical conduction delay but rather initiates and conducts the electrical impulses. Choice D is incorrect as the SA node does not directly stimulate muscle contraction but rather initiates the electrical events that lead to muscle contraction.

2. At what age does a 9-year-old child typically lose which of the following teeth?

• A. Central incisor
• B. Second molar
• C. Lateral incisor
• D. Cuspid

Correct answer: A

Rationale: A 9-year-old child typically loses their central incisors, not the lateral incisors or second molars. The central incisors are usually among the first teeth that children lose around 6 to 7 years of age, as part of the natural process of shedding primary teeth to make way for permanent teeth. The second molars and cuspids are typically lost later in the mixed dentition phase. Therefore, option A, 'Central incisor,' is the correct answer.

3. A client post-splenectomy is at risk for infection. What is the most important preventive measure the nurse should emphasize during discharge teaching?

• A. Take all prescribed antibiotics as directed.
• B. Avoid crowded places and people who are sick.
• C. Wash hands frequently and practice good hygiene.
• D. Keep the surgical site clean and dry.

Correct answer: C

Rationale: The correct answer is C: 'Wash hands frequently and practice good hygiene.' After a splenectomy, the client is at an increased risk of infection due to the role of the spleen in the immune system. Maintaining good hand hygiene, such as frequent handwashing, is crucial to prevent infections. While taking prescribed antibiotics as directed (Choice A) is important if prescribed, it is not the most crucial preventive measure in this scenario. Avoiding crowded places and sick people (Choice B) can help reduce the risk of exposure to pathogens but may not always be feasible. Keeping the surgical site clean and dry (Choice D) is important for wound care but is not the primary preventive measure to protect against infections in a post-splenectomy client.

4. When documenting information in a client's medical record, what should the nurse do?

• A. Cross out errors with a single line and initial them
• B. Use a black ink pen
• C. Leave one line blank before each new entry
• D. End each entry with the nurse's signature and title

Correct answer: D

Rationale: When documenting information in a client's medical record, the nurse should end each entry with their signature and title. This practice is crucial for legal and professional standards compliance as it ensures that the documentation is attributable to the responsible individual. Choices A, B, and C are incorrect because while crossing out errors, using a black ink pen, and leaving a blank line before each entry are good practices, they are not as critical as ensuring each entry is signed and titled by the nurse for accountability and traceability.

5. Which of the following is NOT a second-line agent used for the treatment of Tuberculosis?

• A. Amikacin
• B. Moxifloxacin
• C. Rifabutin
• D. Cycloserine

Correct answer: C

Rationale: The correct answer is C, Rifabutin. Rifabutin is actually a first-line drug used in the treatment of tuberculosis. Choices A, B, and D (Amikacin, Moxifloxacin, and Cycloserine) are considered second-line agents for tuberculosis treatment. These drugs are used when the first-line medications are either ineffective or cannot be tolerated by the patient.

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