Patient with Heart Failure and Fluid Overload
Mr. R is a 75-year-old male admitted with a diagnosis of acute decompensated heart failure. He has a history of hypertension, chronic kidney disease stage 3, and type 2 diabetes. He presents with shortness of breath, orthopnea, and 3+ pitting edema in both lower extremities. His vital signs are: BP 158/92 mmHg, HR 102 bpm, RR 28 breaths/min, SpO2 88% on room air, Temp 37.0°C. He has crackles in the lower lung fields bilaterally. He is receiving furosemide 40 mg IV push daily, metoprolol 50 mg PO twice daily, lisinopril 20 mg PO daily, and sliding scale insulin. His labs: BNP 1200 pg/mL, potassium 3.8 mEq/L, sodium 136 mEq/L, creatinine 2.1 mg/dL (baseline 1.8), BUN 45 mg/dL. He has a urinary catheter with 200 mL output over the past 4 hours. The provider orders oxygen to keep SpO2 > 92%, furosemide 80 mg IV push now, and strict intake/output monitoring.
1. What are the priority nursing assessments and interventions for Mr. R?
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Priority assessments: 1) Monitor respiratory status including rate, depth, effort, lung sounds, and SpO2 to detect worsening pulmonary edema. 2) Assess fluid status: daily weight, intake/output, edema, jugular venous distension, and skin turgor. 3) Monitor vital signs especially BP and HR; note that metoprolol may mask tachycardia. 4) Monitor renal function (creatinine, BUN, urine output) because furosemide can worsen kidney function, especially with CKD. 5) Monitor electrolytes especially potassium, as furosemide causes hypokalemia. Interventions: 1) Administer oxygen as ordered to maintain SpO2 >92%. 2) Administer IV furosemide as ordered and monitor response (urine output, weight loss, respiratory improvement). 3) Position in high Fowler's to ease breathing. 4) Strict intake/output monitoring and daily weights. 5) Monitor for signs of hypokalemia (muscle weakness, arrhythmias). 6) Collaborate with provider regarding rising creatinine and adjust medications as needed. Rationale: These actions address the immediate respiratory distress and fluid overload while preventing complications.
2. The nurse notes that Mr. R's urine output is 200 mL over 4 hours after the IV furosemide. What is the significance of this finding, and what should the nurse do?
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Urine output of 200 mL over 4 hours is less than the expected response to IV furosemide (typically 0.5-1 mL/kg/hr, but in heart failure, a diuresis of >500 mL over 2-4 hours post-dose is often expected). This may indicate diuretic resistance or worsening renal function (creatinine rising from 1.8 to 2.1). The nurse should: 1) Assess for signs of fluid overload (increasing crackles, edema, weight gain). 2) Notify the provider because the patient may need a higher dose or alternative diuretic (e.g., bumetanide, or adding a thiazide). 3) Monitor renal function and electrolytes closely. 4) Continue to monitor intake/output and daily weights. 5) Assess for bladder distension or catheter patency. Rationale: Inadequate diuresis can lead to worsening heart failure and requires prompt intervention.