11 results
Hematuria Workup and Diagnosis Algorithm
 • Confirm hematuria → Urinalysis >3 RBCs/HPF, exclude mimics, repeat testing
• Symptoms of UTI ... and treat for UTI ... → Refer to Nephrology ... cystoscopy • Refer to Nephrology ... if cause not identified
Abnormally Colored Urine - Differential Diagnosis Framework
Red:
 - Hematuria, Hemoglobinuria, Myoglobinuria
 - Beets, Rhubarb, Blackberries, Artificial
- Differential Diagnosis ... jaundice, Familial Hypercalcemia ... , Pseudomonas UTI ... patients with UTI ... #nephrology
Causes of Polyuria - Differential Diagnosis
Excess Intake of Water:
 • Primary polydipsia (a.k.a. "psychogenic polydipsia")
 •
Causes of Polyuria ... SGLT2 inhibitors (e.g ... Hereditary, Lithium, Hypercalcemia ... volume): • UTI ... #Causes #nephrology
Causes Abnormal Urine Color - Differential Diagnosis
Turbid White Urine (Albinuria):
 • Chyluria, Filariasis, Schistosomiasis, Malignancy, Phosphaturia,
disease, Pseudomonas UTI ... Bag Syndrome - UTI ... Serratia marcescens UTI ... Proteus mirabilis UTI ... #nephrology
Causes of Proteinuria - Differential Diagnosis Algorithm
Persistent Proteinuria >150mg/d protein present on repeat testing including overnight
- Differential Diagnosis ... • Fever • UTI ... Protein deposition (eg ... #Proteinuria #Nephrology ... #Differential #Diagnosis
Urine Color - Differential Diagnosis
Red Urine:
 • Medical conditions: bleeding, porphyria, factitious disorder
 • Meds: rifampin,
Diagnosis Red Urine ... : • Any cause of ... dyes typically cause ... conditions: UTI ... discoloration #nephrology
Possible Causes of Altered Urine Color 

Red 
    Foods: beets, blackberries, rhubarb
Possible Causes ... of Altered Urine ... Catheter + Alkaline UTI ... #Differential #Diagnosis ... #Nephrology
Rhabdomyolysis - Differential Diagnosis Framework and Management Summary

Causes of Rhabdomyolysis:
 • Trauma:
	- Immobilization
	- Crush injury
	- Compartment
- Differential Diagnosis ... Management Summary Causes ... exertion/training - Seizures ... Weakness - Dark urine ... #treatment #nephrology
Hyperkalemia - Diagnosis and Management - GrepMed Handbook

S/Sx: Most pts asymptomatic. Weakness, cramping, nausea, paresthesias, palpitations,
Hyperkalemia - Diagnosis ... lysis) ± Urine ... Cortisol+ACTH stim ... only if no clear cause ... Treatment #potassium #nephrology
Causes of Hyperkalemia - Reduced Excretion - Differential Diagnosis Algorithm

Reduced flow through distal nephron - TTKG
Causes of Hyperkalemia ... - Differential Diagnosis ... nephron - TTKG > 7, Urine ... • Low EABV (e.g ... IntercellularShift #Nephrology