11 results
Metabolic Alkalosis - Urinary Chloride Algorithm
Cl- responsive metabolic alkalosis
 • Kidney loss of Cl-
• Normal/low ... diuretic use, Bartter syndrome ... , Gitelman syndrome ... the excretion of sodium ... #differential #diagnosis
Metabolic Alkalosis - Differential Diagnosis Algorithm - Urinary Chloride
 • Cl- responsive metabolic alkalosis
- Differential Diagnosis ... - Normal/low ... diuretic use, Bartter syndrome ... , Gitelman syndrome ... #Differential #Diagnosis
Hypernatremia - Differential Diagnosis Workup Algorithm

1) Check Urine Osmolality:
 > 600 mOsm/kg - Implies extrarenal mechanism
Differential Diagnosis ... • Euvolemic (Low ... , Cushing syndrome ... #Differential #Diagnosis ... Algorithm #nephrology #sodium
Gitelman Syndrome Overview

What?
• Inherited (AR) hypokalemic salt-losing tubulopathies affecting the thiazide-sensitive sodium chloride cotransporter
• Gitelman's syndrome
thiazide-sensitive sodium ... • Normal or low ... Renal tubular acidosis ... tachycardia • Seizures ... #diagnosis #nephrology
Inherited Defects in Kidney Tubule Epithelial Cells

Renal glucosuria - Na+-dependent glucose cotransporter
Cystinuria - Amino acid transporter
Bartter
cell epithelial sodium ... of epithelial sodium ... renal tubular acidosis ... Kidney #Nephrology #Diagnosis ... #Differential #Table
Physiologic Approach to Hypotonic Hyponatremia
The next time you have a case of hypotonic hyponatremia, give the
: SIADH, Renal Sodium ... can be high or low ... Cirrhosis, Nephrotic syndrome ... #differential #diagnosis ... #table #sodium
Heat Illnesses and Heat Stroke - Differential Diagnosis Framework

Heat Cramps:
 • Muscle pain or spasm -
- Differential Diagnosis ... Dehydration - Loss of sodium ... conditions - Neurogenic ... heat illness → Hypernatremia ... consciousness, Coma/seizure
Diuretics and Agents Regulating Renal Excretion

Carbonic Anhydrase Inhibitors (Acetazolamide, Dichlorphenamide)
 • Glaucoma
 • Epilepsy
 • Altitude
• Metabolic alkalosis ... • Diagnosis of ... • Hyponatremia ... and euvolemic hyponatremia ... #Medications #Table
Citrate Anticoagulation Toxicity

Hypernatremia (HyperNa):
 - Citrate solutions may have ↑ sodium content and should be paired
Anticoagulation Toxicity Hypernatremia ... Anion-Gap Metabolic Acidosis ... dysfunction or low ... metabolism Metabolic alkalosis ... toxicology #nephrology #diagnosis
#ICUCard
RENAL
GFR
90-131
mL/min
((140-age)*Wt)/(72*Cr)
Glomerular Filtration Rate (Cockcroft)
CI Cr
90-131
mL/min
(CrU * volume)/CrS
Creatinine Clearance
FENa
0.0-1.0
%
((U/P Na)/(U/P Cr))*100
Fractional Excretion of Na+
Na req
mEq
(125-Na)*0.6*Wt
Required Sodium
FE Urea
0.6*Wt Required Sodium ... 2)| Metabolic Alkalosis ... 9 Respiratory Acidosis ... Distress Syndrome ... -2min Calcium chloride