Four hours following surgical repair of a compound fracture of the right ulna, the nurse is unable to palpate the client’s right radial pulse. Which action should the nurse take first?

Choice A reason: Keeping pressure on the abdomen and coughing is incorrect for diaphragmatic breathing, which enhances lung expansion, not airway clearance. Coughing is for post-drainage. The client’s incorrect technique (abdominal expansion on exhalation) requires correction, as this reverses mechanics, reducing ventilation efficiency in conditions like COPD.

Choice B reason: The client’s technique is incorrect, expanding the abdomen on exhalation, not inhalation, reducing diaphragmatic efficacy. Confirming it as correct is wrong, as it impairs lung expansion. Demonstrating proper technique corrects the error, ensuring effective breathing to improve oxygenation, addressing the physiological need for ventilation.

Choice C reason: Documenting success is inaccurate, as the client’s technique is reversed, expanding the abdomen on exhalation. Diaphragmatic breathing requires inhalation expansion to lower the diaphragm, increasing lung capacity. Correcting the technique via demonstration ensures proper mechanics, not documenting an ineffective method that hinders ventilation.

Choice D reason: Demonstrating proper diaphragmatic breathing corrects the client’s error of exhalation expansion. Inhaling expands the abdomen via diaphragmatic descent, increasing tidal volume; exhaling relaxes it. This optimizes ventilation, addressing the need for effective breathing in conditions requiring enhanced lung function, ensuring the client learns the correct technique.

Choice A reason: Orientation to person and place only suggests confusion, common in right hemisphere stroke affecting non-dominant cognition. This is not immediately life-threatening. Pupillary dilation indicates increased intracranial pressure (ICP) or herniation, a critical emergency requiring urgent intervention to prevent brain stem damage or death.

Choice B reason: Unequal hand grip strengths indicate hemiparesis, typical in right hemisphere stroke affecting left-sided motor function. This is expected and not acutely life-threatening. Pupillary dilation signals rising ICP or herniation, necessitating immediate intervention to prevent catastrophic neurological decline, making it the priority finding.

Choice C reason: Left-sided facial drooping and dysphagia are common in right hemisphere stroke, reflecting contralateral cranial nerve deficits. These are serious but not immediately life-threatening. Pupillary dilation indicates potential herniation from ICP, requiring urgent intervention like mannitol to prevent brain stem compression and fatal outcomes.

Choice D reason: Ipsilateral pupillary dilation in right hemisphere stroke signals increased ICP or herniation, compressing the oculomotor nerve (CN III), impairing pupillary constriction. This life-threatening emergency indicates impending brain stem compromise, requiring immediate intervention with ICP-lowering measures or surgery to prevent irreversible damage or death.