27 results
Adrenal Insufficiency Differential Diagnosis Algorithm
Clinical suspicion: Weakness, fatigue, nausea, musculoskeletal pain, dizziness, volume depletion, abdominal pain,
Differential Diagnosis Algorithm ... Weakness, fatigue, nausea ... , hypoglycemia Testing ... Baseline plasma ACTH Low ... • Low or normal
Adrenal Insufficiency Diagnosis Algorithm - Evaluation of HPA Axis Response to ACTH

Early am cortisol < 3
Adrenal Insufficiency ... Diagnosis Algorithm ... unclear (often the case ... then go to stim testing ... primary AI - Low
The Diagnostic Approach to Hyperkalemia
Drugs
 - Amiloride
 - Spironolactone
 - Triamterene
 - Trimethoprim
 - Pentamidine
 -
inhibitors Other causes ... Primary adrenal insufficiency ... Ketoconazole Low ... #Hyperkalemia #Algorithm ... #differential #causes
Hyponatremia Diagnosis Algorithm
UOsm ≥ POsm - Vasopressin-Dependent
 • UNa < 20 mEq/L - Appropriate (↓ EABV)
Hyponatremia Diagnosis Algorithm ... Primary polydipsia, Low ... intake, Renal insufficiency ... #differential #algorithm ... #causes #nephrology
Diagnosis Adrenal Insufficiency - Algorithm

Step 1) Screening Test: 6-8AM Cortisol Level
 - Early morning cortisol levels
Diagnosis Adrenal Insufficiency ... - Algorithm ... specificity for AI (but low ... require Cosyntropin testing ... - Low ACTH is
Hyponatremia - Differential Diagnosis Algorithm
ADH Independent:
 • Tea and Toast Syndrome, Beer Potomania - Low solute
Differential Diagnosis Algorithm ... Beer Potomania - Low ... Hypothyroidism, adrenal insufficiency ... Differential #Diagnosis #Algorithm ... #causes #nephrology
Modified Hyponatremia Algorithm
Hypertonic Hyponatremia: Hyperglycemia, Mannitol, Urologic irrigants
Hypotonic Hyponatremia: 
 • ADH ON (UOsm > 100):
Modified Hyponatremia Algorithm ... Hypothyroidism, Adrenal insufficiency ... Cerebral salt wasting ... Primary polydipsia, Low ... #Hyponatremia #Algorithm
Hypoglycemia - Differential Diagnosis Algorithm
Fasting Hypoglycemia:
 • Excess Insulin
 • Medications (e.g. Insulin Secretagogues, ß-Adrenergic Antagonists,
Differential Diagnosis Algorithm ... Idiopathic Other Causes ... Hypopituitarism • Adrenal Insufficiency ... Differential #Diagnosis #Algorithm ... endocrinology #causes
Primary Adrenal Insufficiency:
 • ACTH stimulation test - Synthetic ACTH does not stimulate cortisol secretion because
between 8 and 9 AM - Low ... aldosterone - Low ... in cases in which ... Plasma ACTH - Low ... laboratory #diagnosis #testing
Physiologic Approach to Hypotonic Hyponatremia
The next time you have a case of hypotonic hyponatremia, give the
time you have a case ... normal volume-based algorithm ... can be high or low ... Hypothyroidism, Adrenal Insufficiency ... Cerebral Salt Wasting