During assessment of the jugular venous pressure (JVP), the advanced practice registered nurse (APRN) measures a JVP >5cm above the sternal angle. How will this finding be described?

A. Pneumothorax is correct because a hyperresonant percussion note occurs when air collects in the pleural space, as in a pneumothorax. The presence of excess air increases the resonance of the chest wall, producing a louder, lower-pitched, and more hollow sound when percussed compared with normal, air-filled lungs. Hyperresonance is a classic finding in conditions where there is trapped air, such as tension or simple pneumothorax, and can also be seen in severe emphysema. Detecting hyperresonance during physical examination helps the clinician identify abnormal air accumulation, which may require urgent intervention depending on the severity of the pneumothorax.

B. Lobar pneumonia is incorrect because consolidation from pneumonia involves alveoli filled with inflammatory exudate and fluid, which decreases the air content of the lung. During percussion, these consolidated areas produce a dull percussion note, which is lower in pitch and less resonant compared with normal lung tissue. Hyperresonance does not occur in pneumonia.

C. Pleural effusion is incorrect because fluid in the pleural space dampens the percussion sound, resulting in a dull or flat percussion note. The increased density from the fluid reduces the resonance compared with normal lung, and hyperresonance is not observed.

D. Empyema is incorrect because empyema involves purulent fluid within the pleural space, which similarly produces a dull or flat percussion note. The presence of fluid and thick pus diminishes resonance, so hyperresonance is not expected in this condition.

A. Palpate vibrations transmitted through the chest wall with the patient saying "ninety-nine" is incorrect because this describes tactile fremitus, not chest expansion. Fremitus assesses the transmission of vocal vibrations through lung tissue and can indicate consolidation, effusion, or pneumothorax, but it does not measure lung excursion.

B. Assess the distance between the examiner's thumbs on the thorax during inspiration is correct because chest expansion (lung excursion) is assessed by placing the examiner’s hands with thumbs along the posterior thorax at the level of the 10th ribs, palms on the lower ribs, and fingers grasping the lateral rib cage. The APRN asks the patient to take a deep breath, and observes the distance the thumbs move apart during inspiration, which indicates lung expansion and diaphragmatic movement. This technique helps identify asymmetry or restriction in chest expansion, which may occur in conditions such as pleural effusion, pneumothorax, or atelectasis.

C. Determine the distance between the diaphragm on expiration and inspiration is incorrect because diaphragmatic excursion is assessed using percussion to measure the diaphragm’s movement, not by manual palpation of the thumbs. While related, diaphragmatic excursion is a separate assessment from chest expansion.

D. Percuss the anterior and posterior thorax using a ladder pattern is incorrect because percussion evaluates lung resonance, presence of consolidation, fluid, or air, but does not directly measure chest expansion. Percussion is an inspection of sound quality, not the mechanical movement of the chest wall.