Nephrology
Clinical discussions on kidney disease management, dialysis, transplantation, and electrolyte disorders.
Recent Discussions
When do you consider giving IV albumin for severe hypoalbuminemia with third-spacing of fluid outside of standard indications (i.e., large-volume paracentesis, HRS, SBP, shock, etc.)?
On the wards, I do not treat the albumin number. Severe hypoalbuminemia with third spacing, by itself, is not an indication for IV albumin. The consistent signal from the literature is that albumin should not be used simply to raise serum levels or to “pull fluid back in” as an adjunct to diuretics....
How do you approach checking an aldosterone to renin ratio in an outpatient with hypertension and hypokalemia that is difficult to correct with oral potassium replacement?
It is well known that hypokalemia can affect the aldosterone-renin ratio (ARR). Since hypokalemia directly inhibits aldosterone production, this can lead to false negative results when using ARR to screen for primary aldosteronism. If it is difficult to correct hypokalemia with oral potassium repla...
Is there a role for early GLP-1 therapy for weight loss in patients with early-stage ADPKD and obesity, given the association between obesity and the risk of progression to ESKD?
Indeed, maintaining a healthy BMI is an important evidence-based guideline in ADPKD, but no data exist for early GLP-1 therapy and early-stage ADPKD at this time. Weight loss has not yet been shown to be protective of eGFR in ADPKD, although of course, conceptually, we believe that to be true. That ...
In a hospitalized patient who undergoes a MRI with gadolinium contrast study, would you perform hemodialysis if they have AKI with prior dialysis requirements but do not currently otherwise meet criteria for dialysis?
I would not. Although gadolinium contrast has been associated with nephrogenic systemic fibrosis in patients with advanced CKD or AKI, the risk is much lower for the newer generation contrast agents with more tightly chelated Gd. That said, the risk is not zero, as reviewed in a recent CJASN perspec...
Are you comfortable using low molecular weight heparin as an alternative to unfractionated heparin for ESKD patients on nocturnal home hemodialysis?
Low molecular weight heparin may be used as an alternative to unfractionated heparin for ESKD patients on nocturnal home hemodialysis. However, its use requires close monitoring and careful management. Unlike unfractionated heparin, which is fully reversible with protamine, LMWH is only partially re...
Are there instances when you will forgo dialysis catheter placement and instead use an existing AVF/AVG for an ESKD patient who requires CRRT?
has not happened yet for me. Our ICU nurses manage CRRT and with this, I would imagine the dialysis nurses would have to cannulate the fistula, and then the ICU nurses have to take over. It is probably a little risky as the patient would be on the machine continuously possibly for days and there is ...
What is your approach to managing incidental hypertension without evidence of end-organ damage in hospitalized patients?
Approaches to managing inpatient HTN without evidence of end-organ dysfunction have evolved over the years. I worked with some attendings who felt strongly about treating. There was a great JAMA IM article that explored this very question for non-cardiac patients. Link here: Rastogi et al., PMID 333...
How do you decide which patients with asymptomatic hyperkalemia and CKD warrant inpatient admission versus expedited outpatient management?
I would imagine that there is no EKG available as the patient is outpatient. I prefer not to admit patients as much as possible. I would not admit patients with potassium levels less than 6. For those between 6 and 6.5, I would try to treat medically and recheck potassium the next day. If potassium ...
How do you recommend mitigating the risks of using beta blocker and clonidine therapy in combination for management of hypertension?
Beta blockers vary in lipophilicity, which affects blood-brain barrier permeability. Propranolol and metoprolol readily cross the blood-brain barrier, while other beta-blockers like nebivolol do not. The CNS side effects of fatigue, depression, and insomnia are more likely to worsen if using a lipop...
How do you manage a patient on peritoneal dialysis who develops a single episode of cloudy effluent with a low cell count and no organisms on Gram stain while remaining clinically well?
There is a relatively broad differential diagnosis for patients presenting with cloudy dialysis fluid that appears to be non-infectious in nature (Rocklin & Teitelbaum, PMID 11208038). While the differential for fluid that is totally acellular is relatively narrow - fibrin or triglycerides are the u...