the sinoatrial node sa is located within which of the following heart structures
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Nursing Elites

NCLEX-RN

NCLEX RN Predictor Exam

1. The Sinoatrial Node (SA) is located within which of the following heart structures?

Correct answer: C

Rationale: The Sinoatrial (SA) Node, often called the heart's natural pacemaker, is situated within the upper wall of the Right Atrium. It initiates the electrical impulses that regulate the heartbeat. Choices A, B, and D are incorrect because the SA node is not located in the Mitral Valve, Right Ventricle, or Left Atrium. It is specifically positioned in the Right Atrium to coordinate the heart's rhythm and timing.

2. The client often sighs and says in a monotone voice, 'I'm never going to get over this.' When encouraged to participate in care, the client says, 'I don't have the energy.' These cues are suggestive of which nursing diagnoses? Select all that apply.

Correct answer: A

Rationale: A nursing diagnosis involves clinical judgment about a response to a health problem. In this scenario, the client's expressions of feeling overwhelmed and lacking energy indicate feelings of hopelessness and powerlessness. While fatigue is mentioned, there is no direct evidence to support an interrupted sleep pattern, making option C incorrect. Similarly, disturbed self-esteem and self-care deficit are not evident from the given cues, making options D and E incorrect.

3. When providing endotracheal suctioning, for how long should the nurse suction the endotracheal tube of an intubated client on a ventilator at a time?

Correct answer: B

Rationale: When providing endotracheal suctioning, the nurse should suction for no longer than ten seconds at a time. Suctioning for longer than ten seconds may cause hypoxia or bronchospasm. Extended suctioning may also place the client at risk of injury to the bronchial and tracheal structures. Choices C and D suggest prolonged suctioning durations that can lead to adverse effects on the client. Choice A, suctioning for five seconds or less, may not be adequate to clear secretions effectively, making choice B the most appropriate duration for safe and efficient suctioning in this scenario.

4. What is the initial step to take when a patient passes out at the front desk?

Correct answer: C

Rationale: The correct initial step when a patient passes out at the front desk is to shake the patient gently and ask if they are okay. This step aims to assess the patient's level of responsiveness. Checking for a pulse or initiating CPR should only be done if the patient does not respond to being shaken. Calling 911 can be the next step after assessing the patient's immediate condition and providing necessary assistance.

5. The nurse is preparing to perform a physical assessment. The correct action by the nurse is reflected by which statement?

Correct answer: D

Rationale: The nurse should organize the assessment to minimize the patient's need to change positions frequently, ensuring efficiency and comfort. It is essential to perform the examination from both sides of the bed to facilitate a comprehensive assessment. Examining tender or painful areas last can help reduce patient discomfort and anxiety. The examination sequence should be flexible, taking into account the patient's age, condition, and specific needs. This approach allows for a tailored and patient-centered assessment, optimizing the quality of care provided.

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