8 results
Polyuria - Differential Diagnosis Algorithm
Polyuria = >3L Urine output / 24 hours
Urine osmolality = 2 (Na
Polyuria - Differential ... Diagnosis Algorithm ... solute intake (e.g ... nutrition), Azotemia LOW ... #nephrology
Causes of Polyuria - Differential Diagnosis
Excess Intake of Water:
 • Primary polydipsia (a.k.a. "psychogenic polydipsia")
 •
- Differential ... SGLT2 inhibitors (e.g ... • Central Dl (Low ... Hereditary, Lithium, Hypercalcemia ... Diagnosis #Causes #nephrology
Causes of Polyuria - Differential Diagnosis Algorithm
Polyuria - Urine Output > 3L/day, Increased Urine Volume (>2ml/min)
Osmotic
- Differential ... Diagnosis Algorithm ... concentration (e.g ... Recovery from Acute ... #Nephrology #Differential
Causes of Hypernatremia - Differential Diagnosis Algorithm
Hypernatremia - Excess free water loss, Serum Sodium >145 mmol/L
High
Diagnosis Algorithm ... diuresis (see Polyuria ... scheme) e.g., mannitol ... , glucosuria Low ... Hypernatremia #Nephrology
Causes of Hyponatremia - Differential Diagnosis Algorithm
Hypovolemia, UNa > 20: 
 • Renal losses, Diuretic excess,
Hyponatremia - Differential ... Diagnosis Algorithm ... deficiency, Salt-losing ... UNa > 20: • Acute ... #Causes #nephrology
Causes of Hyperkalemia - Reduced Excretion - Differential Diagnosis Algorithm

Reduced flow through distal nephron - TTKG
Causes of Hyperkalemia ... Diagnosis Algorithm ... EABV (e.g., CHF ... IntercellularShift #Nephrology ... #Differential #
Causes of Hyperkalemia - Intercellular Shift - Differential Diagnosis Algorithm
Transcellular Shift - Appropriate renal excretion (GFR,
Causes of Hyperkalemia ... Diagnosis Algorithm ... , TTKG, distal flow ... • Cell Lysis (e.g ... IntercellularShift #Nephrology
Causes of ST Segment Elevation - Differential Diagnosis Framework

STEMI:
 • Upsloping convex STE: "Pardee's sign" +
Segment Elevation - Differential ... downsloping - Coving ... Disorders: • Hyperkalemia ... Tower sign) and low-amplitude ... weeks following an acute