Nephrology
Clinical discussions on kidney disease management, dialysis, transplantation, and electrolyte disorders.
Recent Discussions
Do you routinely hold SGLT2 inhibitors prescribed for CHF or CKD in acutely ill patients upon admission to the hospital?
Thanks for this great question. The use of SGLT2 inhibitors in the hospital has been increasing dramatically, given their great effects on CKD and CHF for both diabetic and non-diabetic patients. There are simple direct contraindications for using SGLT2s, which would include patients with ketosis in...
How would you approach a patient with ESKD on HD who denies a history of abdominal hernias but lifts heavy objects daily as part of work requirements and is desiring to transition to PD?
As a general rule, I instruct patients to lift no more than 15 pounds while they have fluid in the abdomen. Therefore, this patient would need to remain dry during work hours. The ability of a patient such as this to successfully perform PD will depend on his/her muscle mass and residual kidney func...
What is your systolic blood pressure target for patients over 80 with frailty and multiple comorbidities?
The target of 150/90 mmHg for adults over 80 primarily comes from the HYVET study, which demonstrated benefit in reducing stroke and mortality in this age group. However, as with all decisions in geriatric care, treatment should be individualized and guided by the patient’s functional status and goa...
How do you approach vitamin D supplementation in patients with chronic kidney disease, given the findings that vitamin D2 supplementation may lead to decreased conversion of 25-hydroxyvitamin D3 to 1,25-dihydroxyvitamin D3?
In early 2000, there was a publication suggesting that ingesting vitamin D2 increases the destruction of vitamin D3 and therefore could increase the risk for vitamin D deficiency. Although I had never seen this happen in my clinic, we decided to conduct a study to evaluate what the effect of vitamin...
How has the FLUID trial, which showed no significant difference in death or readmission rates between Lactated Ringer’s solution and normal saline, influenced your approach to IV fluid management?
The choice between normal saline and Lactated Ringer's should be individualized. Normal saline is preferred in patients with hyponatremia or metabolic alkalosis. Lactated Ringer's is preferred in patients with hyperchloremic acidosis, and it should be avoided in patients with hyponatremia since its ...
How do you approach management for recurrent stone formers who sleep over 8 hours per day and fail to reach 2.5 liters of daily urine output on 24 hour urine stone risk studies?
I suggest the patient plan a schedule by which they drink 2.5 L per day. To get started, I suggest they set their phone to alert them when it is time to drink the requisite amount of fluid, preferably water. After a while, this becomes an automatic habit. Stephen B. Erickson, MD
Do you accept a decline in eGFR during aggressive diuresis for heart failure if the patient is successfully decongesting, given data suggesting modest eGFR decline with improved congestion may still be associated with lower mortality?
Yes, I accept a modest decline in eGFR during diuresis in patients with heart failure. Previous studies of patients hospitalized with acute decompensated heart failure have shown that mortality and readmission rates are reduced by effective decongestion even if the creatinine rises. The study by Oka...
Do you check mycophenolate levels in patients prescribed mycophenolate who present with a lupus nephritis flare?
In general, I tend to shoot for an induction dose (3 grams) if I am using Cellcept with steroids for a flare, unless I am doing multitarget therapy or there are side effects such as GI symptoms or cytopenias. In those cases, I lower the dose to 2 grams (1000 mg BID). If there is concern for unsatisf...
What is your approach to differentiating secondary membranous nephropathy from infection-related glomerulonephritis in a patient with a bacterial infection who has borderline low complement studies?
This is primarily a biopsy distinction. Secondary membranous nephropathy is characterized by subepithelial immune complex deposits without cellular proliferation whereas infection-related glomerulonephritis Is characterized by endocapillary proliferation with large, subepithelial humps and often mes...
Do you recommend 24 hour urine stone risk studies for patients with no history of nephrolithiasis who are undergoing evaluation as potential kidney donors?
We ask all donors if they have had a history of kidney stones. All donors also get a CT angiogram of the abdomen. Patients with a stone history will need a 24-hour urine stone risk profile. If a donor has an incidental single stone, we may still allow donation, but we would ask for a 24 stone profil...