A nurse is preparing to assess a client's lung sounds. Which of the following actions should the nurse take to ensure accurate auscultation?

Place the stethoscope over the client's gown to maintain privacy.

Ask the client to take deep breaths through the mouth while auscultating.

Auscultate only the anterior lung fields to minimize client fatigue.

Use the bell of the stethoscope to better detect high-pitched sounds.

Answer and Explanation

The Correct Answer is B

Choice A reason: Auscultating over clothing or a gown can create friction rubs and extraneous noises that mimic adventitious breath sounds like crackles or wheezes. For diagnostic accuracy, the diaphragm of the stethoscope must be placed directly on the skin to hear the true character of air movement.

Choice B reason: Instructing the patient to breathe deeply through an open mouth enhances the volume of air moving through the airways, making breath sounds clearer and easier to distinguish. Nasal breathing can create turbulent noise in the upper airway that may be transmitted and confused with lung sounds.

Choice C reason: Assessing only the anterior fields provides an incomplete picture of pulmonary health. Many abnormalities, such as fluid in the bases (crepitations), are more easily detected in the posterior lung fields. A thorough assessment must include anterior, posterior, and lateral segments to ensure no pathology is missed.

Choice D reason: The diaphragm of the stethoscope, not the bell, is the correct tool for auscultating lung sounds. Breath sounds are generally high-pitched, and the diaphragm is specifically designed to capture high-frequency vibrations. The bell is reserved for low-pitched sounds, such as certain heart murmurs or bruits.

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Correct Answer is C

Explanation

Choice A reason: A reading of 110/70 mm Hg is considered a normal blood pressure for an adult. This indicates that both the systolic and diastolic pressures are within the optimal range for cardiovascular health, showing no evidence of the elevated arterial wall tension that characterizes a diagnosis of hypertension.

Choice B reason: A reading of 118/78 mm Hg is categorized as a normal blood pressure according to the most recent clinical guidelines. While it is on the higher end of the normal range, it does not meet the diagnostic threshold for elevated blood pressure or hypertension in a clinical setting.

Choice C reason: A reading of 146/92 mm Hg is consistent with Stage 2 Hypertension. According to current medical standards, Stage 2 Hypertension is defined as a systolic pressure ≥ 140 mm Hg or a diastolic pressure ≥ 90 mm Hg. This reading clearly exceeds those parameters, requiring clinical monitoring and intervention.

Choice D reason: A reading of 124/84 mm Hg would be classified as "Elevated" blood pressure (if systolic is 120 to 129) or Stage 1 Hypertension (if diastolic is 80 to 89). While higher than normal, 146/92 mm Hg is a more definitive representation of a established hypertensive diagnosis frequently seen in clinical charts.

A. Palpation B. Inspection C. Auscultation D. Percussion

Correct Answer is C

Explanation

Choice A reason: Palpation involves the use of the hands and fingers to feel for surface characteristics, organs, or masses. It relies on the sense of touch to evaluate texture, temperature, and tenderness. It does not involve the use of a stethoscope to listen to internal body sounds.

Choice B reason: Inspection is the systematic visual examination of the patient. It is the first step in a physical assessment and relies entirely on sight and smell to detect abnormalities in movement, color, or symmetry. It does not utilize instruments to detect acoustic signals from the lungs.

Choice C reason: Auscultation is the assessment technique of listening to sounds produced within the body, typically using a stethoscope. This method is essential for evaluating the heart, lungs, and abdomen. By listening to the character of the breath sounds, the nurse can detect abnormalities such as wheezing or crackles.

Choice D reason: Percussion is a technique where the nurse taps the body surface with fingertips to produce vibrations and sounds. The resulting notes help determine the density of underlying tissues (e.g., air, fluid, or solid). It is a diagnostic tool that precedes auscultation but does not involve a stethoscope.

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A nurse is preparing to assess a client's lung sounds. Which of the following actions should the nurse take to ensure accurate auscultation?

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