which statement by the client with chronic obstructive lung disease indicates an understanding of the major reason for the use of occasional pursed li

NCLEX-RN

NCLEX RN Exam Prep

1. Which statement by the client with chronic obstructive lung disease indicates an understanding of the major reason for the use of occasional pursed-lip breathing?

A. ''This action of my lips helps to keep my airway open.''
B. ''I can expel more air when I pucker up my lips to breathe out.''
C. ''My mouth doesn't get as dry when I breathe with pursed lips.''
D. ''By prolonging breathing out with pursed lips, the smaller areas in my lungs don't collapse.''

Correct answer: D

Rationale: The correct answer is D. Clients with chronic obstructive pulmonary disease have difficulty exhaling fully due to the weak alveolar walls from the disease process. Pursed-lip breathing helps prevent alveolar collapse by maintaining positive pressure in the airways during exhalation. This is the major reason for using pursed-lip breathing in individuals with chronic obstructive lung disease. Choices A, B, and C are incorrect because they do not directly address the main purpose of pursed-lip breathing, which is to prevent alveolar collapse and improve exhalation in these patients.

2. After performing the appropriate client assessment, which of the following inferences would the nurse make?

A. Client is hypotensive
B. Respiratory rate of 20 breaths per minute
C. Oxygen saturation of 95%
D. Client relays anxiety about blood work

Correct answer: A

Rationale: An inference is the nurse's judgment or interpretation of cues gathered during an assessment. In this scenario, identifying a client as hypotensive would be an inference based on blood pressure readings that indicate lower than normal values. Respiratory rate and oxygen saturation levels (choices B and C) are important cues that provide additional data but do not directly point to a specific conclusion like hypotension. The client expressing anxiety about blood work (choice D) is relevant information but relates more to their emotional state rather than a physiological assessment finding.

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. During a general survey of a patient, which finding is considered normal?

A. Body mass index (BMI) of 20.
B. When standing, the patient's base is narrow.
C. The patient appears older than their stated age.
D. Arm span (fingertip to fingertip) is greater than the height.

Correct answer: A

Rationale: A body mass index (BMI) of 20 is considered normal as the range for a normal BMI is between 19-24. When standing, a patient's base should be wide for stability and proper weight distribution. An older appearance than the stated age may indicate a history of chronic illness or chronic alcoholism. In a general survey, the patient's arm span (fingertip to fingertip) should approximately equal the patient's height. An arm span greater than the height may suggest Marfan syndrome. Therefore, the correct choice is a normal BMI of 20, which falls within the healthy range. Choices B, C, and D all describe abnormal findings that may indicate underlying health conditions or syndromes.

5. Which of the following is an anthropometric measurement?

A. Blood pressure
B. Temperature
C. Pulse Rate
D. Weight

Correct answer: D

Rationale: Anthropometric measurements relate to the size, weight, and proportions of the human body. Weight is a key anthropometric measurement as it directly reflects body mass, making it the correct choice. Blood pressure, temperature, and pulse rate are physiological measurements that do not specifically pertain to body size or proportion, hence making them incorrect choices in the context of anthropometric measurements.