56 results
Hirsutism - Differential Diagnosis Algorithm
RAPID ONSET
Medications
 • Steroids
 • Danazol
 • Progestin Containing Contraceptives
Increased Serum Testosterone
Differential Diagnosis Algorithm ... RAPID ONSET Medications ... Serum DHEAS • Adrenal ... -OH Congenital Adrenal ... #endocrinology
Hypernatremia Diagnosis and Workup

Step 1 . Repeat the sodium concentration.
Step 2.  Check plasma osmolality.
NORMAL PLASMA
Repeat the sodium ... hypothyroidism • adrenal ... • nephrotic syndrome ... Diagnosis #Workup #Algorithm ... #Nephrology
Hypercortisolism (Cushing syndrome) - Simplified Differential Diagnosis Algorithm
Exogenous (ACTH-independent)
Endogenous
 • ACTH-dependent:
    - ACTH-secreting
Hypercortisolism (Cushing syndrome ... Differential Diagnosis Algorithm ... ACTH-independent: - Adrenal ... hyperplasia - Adrenal ... #endocrinology
Hirsutism & Virilization - Differential Diagnosis Algorithm
ADRENAL EXCESS
Ovarian
 • Polycystic Ovarian Syndrome
 • Hyperthecosis
 • Tumor
Adrenal
Differential Diagnosis Algorithm ... ADRENAL EXCESS ... • Congenital Adrenal ... Differential #Diagnosis #Algorithm ... #endocrinology
Modified Hyponatremia Algorithm
Hypertonic Hyponatremia: Hyperglycemia, Mannitol, Urologic irrigants
Hypotonic Hyponatremia: 
 • ADH ON (UOsm > 100):
Modified Hyponatremia Algorithm ... Cirrhosis, Nephrotic syndrome ... Hypothyroidism, Adrenal ... #diagnosis #sodium ... #nephrology
Hyponatremia Differential Diagnosis Algorithm - Utilizing Uric Acid 
ADH promotes Urea/uric acid excretion along with water
Differential Diagnosis Algorithm ... Osmolarity 3) Urine Sodium ... High Uric Acid → renal ... Differential #Diagnosis #Algorithm ... #nephrology #sodium
Hyponatremia - Differential Diagnosis Algorithm
ADH Independent:
 • Tea and Toast Syndrome, Beer Potomania - Low solute
Differential Diagnosis Algorithm ... Tea and Toast Syndrome ... Hypothyroidism, adrenal ... failure, nephrotic syndrome ... #causes #nephrology
Cushing Syndrome Testing Algorithm
INDICATIONS FOR TESTING:
 • Suspected Cushing syndrome (central obesity, muscle weakness, refractory hypertension)
Testing:
Testing Algorithm ... Hormone • MRI of adrenal ... #diagnosis #algorithm ... #endocrinology ... #Adrenal #Hyperfunction
Hypernatremia - Differential Diagnosis Workup Algorithm

1) Check Urine Osmolality:
 > 600 mOsm/kg - Implies extrarenal mechanism
Diagnosis Workup Algorithm ... Hypervolemic: Conn syndrome ... , Cushing syndrome ... Diagnosis #Workup #Algorithm ... #nephrology #sodium
Hypokalemia - Differential Diagnosis Algorithm
Extra-renal Losses:
 • Normal Acid-Base: Low intake
 • Metabolic acidosis: Gl tract
Differential Diagnosis Algorithm ... Extra-renal Losses ... loss (Diarrhea) Renal ... Differential #Diagnosis #Algorithm ... potassium #low #nephrology