The nurse is assessing a client who is admitted to the renal unit with suspected decreased renal perfusion. The nurse should plan to carefully monitor which parameter?
Reference Range: Urine white blood cells (WBC) [0 to 4 WBC/low powered field (lpf)]

Choice A reason: Obtaining an ABG assesses oxygenation in COPD but is not needed before postural drainage, which mobilizes secretions. ABGs are invasive, used for exacerbations. Explaining positions prepares the client, enhancing cooperation for effective mucus clearance, addressing airway obstruction without unnecessary invasive testing.

Choice B reason: Postural drainage uses gravity in five positions (e.g., Trendelenburg, lateral) to drain lung segments in COPD, where mucus obstructs airways. Explaining this reduces anxiety, ensuring cooperation, optimizing secretion clearance to improve ventilation and gas exchange, addressing the pathophysiological need for airway clearance.

Choice C reason: Drainage after meals risks aspiration, as a full stomach increases reflux in positions like Trendelenburg. COPD’s mucus retention obstructs airways, and timing drainage appropriately enhances efficacy. Explaining positions ensures effective procedure execution, avoiding complications like aspiration, making this approach unsafe.

Choice D reason: Shallow, fast breathing is contraindicated in COPD, where deep, slow breaths reduce air trapping and improve alveolar ventilation. Postural drainage clears mucus, and proper breathing enhances efficacy. Explaining positions prepares the client, optimizing outcomes, making this instruction incorrect for effective breathing.

Choice A reason: Increased JVD and pedal edema indicate fluid overload in heart failure, where reduced cardiac output causes venous congestion. Assessing breathing for dyspnea or crackles detects pulmonary edema, as fluid backs into alveoli, impairing gas exchange. This urgent finding guides interventions like diuretics, critical before reporting.

Choice B reason: Palpating pedal pulses assesses arterial flow, not fluid overload causing JVD and edema, which are venous issues in heart failure. Pulses may be normal despite congestion. Breathing changes indicate pulmonary edema, a life-threatening complication, making this assessment more critical for detecting acute decompensation.

Choice C reason: Assessing calf inflammation may detect thrombosis, a heart failure risk, but JVD and edema suggest fluid overload, not clotting. Breathing changes are more urgent, indicating pulmonary edema from alveolar fluid, requiring immediate intervention to prevent respiratory failure, unlike inflammation, which is less immediate.

Choice D reason: Inspecting peripheral vein distention confirms venous congestion but is less critical than breathing assessment. In heart failure, fluid overload risks pulmonary edema, where alveolar fluid causes dyspnea. Monitoring breathing detects this severe complication, prioritizing intervention to ensure oxygenation over additional venous assessment.