13th July 2026

You are reviewing a 68-year-old male with decompensated heart failure with reduced ejection fraction, with a background of CKD, on the acute medical unit.

You are reviewing a 68-year-old male with decompensated heart failure with reduced ejection fraction, with a background of CKD, on the acute medical unit. He was started on intravenous furosemide on admission 3 days ago. On reviewing his blood tests, his serum creatinine level increased from 150 to 225 micromol/L (50%), and eGFR decreased to 25 mL/min/1.73m2

On clinical review, he appears hypovolaemic.

What is the best course of action? 

Select the SINGLE most appropriate option from the list below. Select ONE option only.