[Writing rapidly, nodding]
"Okay, okay - that makes sense now that you explain it. Let me make sure I understand each point..."
On Metformin:
"So Dr. Khan, why exactly is Metformin dangerous in CKD? I know we stop it but... is it the glucose control that fails, or something else?"
[Pen hovering, waiting for your explanation]
On Amlodipine:
"That's interesting - so the leg swelling we're seeing... it could partly be the Amlodipine and not just the heart failure? How do we tell the difference clinically? And should we stop it completely or switch to something else given he's also hypertensive?"
On Lisinopril:
"His potassium is already 5.1 and he's on Lisinopril... and now he's getting IV furosemide which can drop potassium. So are they kind of... balancing each other out? Or is that dangerous thinking?"
[Looks slightly unsure]
"And one more thing Dr. Khan - his creatinine has gone from 160 to 198. Could the Lisinopril be making his kidneys worse too? Should we hold it?"
[Flips page on clipboard]
"Also - you haven't mentioned the Aspirin yet. Is that okay to continue?"