a patient has suddenly developed shortness of breath and appears to be in significant respiratory distress after calling the physician and placing the

NCLEX-RN

NCLEX RN Exam Preview Answers

1. A patient has suddenly developed shortness of breath and appears to be in significant respiratory distress. After calling the physician and placing the patient on oxygen, which of these actions is the best for the nurse to take when further assessing the patient?

A. Count the patient's respirations.
B. Bilaterally percuss the thorax, noting any differences in percussion tones.
C. Call for a chest x-ray and wait for the results before beginning an assessment.
D. Inspect the thorax for any new masses and bleeding associated with respirations.

Correct answer: B

Rationale: In a situation where a patient is in significant respiratory distress, bilaterally percussing the thorax to note any differences in percussion tones is a crucial nursing intervention. Percussion provides instant feedback regarding changes in underlying tissue density, which can give important clues about the patient's physical status. This hands-on assessment technique is readily available and can be performed promptly. Counting the patient's respirations, while important, may not provide as much detailed information as percussion. Ordering a chest x-ray and waiting for the results can cause a delay in assessing and addressing the patient's immediate needs. Inspecting the thorax for new masses and bleeding, although relevant, may not offer as much real-time information about the patient's condition compared to percussion.

2. Which of the following is NOT an acceptable abbreviation?

A. D/C
B. tid
C. bid
D. qid

Correct answer: A

Rationale: The correct answer is A: D/C. D/C is not an acceptable abbreviation as it can be easily confused with both 'discharge' and 'discontinue.' The abbreviations 'tid' (three times a day), 'bid' (twice a day), and 'qid' (four times a day) are commonly used in medical contexts to indicate dosing frequencies and are widely accepted in healthcare settings.

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

A. Mitral Valve
B. Right Ventricle
C. Right Atrium
D. Left Atrium

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.

4. What is the anatomic structure located in the middle of the heart that separates the right and left ventricles?

A. Septum
B. Sputum
C. Separator
D. None of the above

Correct answer: A

Rationale: The correct answer is the septum. The septum is a structure located in the middle of the heart that separates the right and left ventricles. It plays a crucial role in maintaining the separation between the two ventricles to ensure efficient blood flow. The other choices, 'Sputum' and 'Separator,' are incorrect as they do not refer to the anatomic structure in the heart that serves this specific function. 'Sputum' is a term used to describe phlegm or mucus, not an anatomical structure, and 'Separator' is a generic term that does not specifically identify the cardiac structure mentioned in the question.

5. Which statement best describes evidence-based practice?

A. Reading and analyzing research reports to determine their implementation in nursing practice
B. Collecting data to evaluate the efficiency of nursing practice in delivering quality care
C. Monitoring unit practices to ensure adherence to Joint Commission standards
D. Using the most effective, current, and applicable information to guide nursing care for the best outcomes

Correct answer: D

Rationale: Evidence-based practice involves utilizing the most effective, current, and relevant information to inform nursing care decisions for optimal client outcomes. While research reports and data collection are important components of evidence-based practice, the essence lies in integrating all available information to determine the best course of action. Monitoring compliance with standards, as described in choices A and C, is essential for quality assurance but does not capture the comprehensive nature of evidence-based practice.