13 results
Causes of Primary and Secondary Amenorrhea - Differential Diagnosis Algorithm
Primary Amenorrhea - No onset of menarche
Causes of Primary ... Differential Diagnosis Algorithm ... Differential #Diagnosis #Algorithm ... #Causes #OBGyn ... #Gynecology
Adrenal Insufficiency Differential Diagnosis Algorithm
Clinical suspicion: Weakness, fatigue, nausea, musculoskeletal pain, dizziness, volume depletion, abdominal pain,
Differential Diagnosis Algorithm ... , hypotension, hyponatremia ... baseline ACTH - Primary ... baseline ACTH - Secondary ... Differential #Diagnosis #Algorithm
The Diagnostic Approach to Hyperkalemia
Drugs
 - Amiloride
 - Spironolactone
 - Triamterene
 - Trimethoprim
 - Pentamidine
 -
The Diagnostic Approach ... inhibitors Other causes ... High Renin - Primary ... Ketoconazole Low ... #Hyperkalemia #Algorithm
Adrenal Insufficiency Diagnosis Algorithm - Evaluation of HPA Axis Response to ACTH

Early am cortisol < 3
Diagnosis Algorithm ... Response to ACTH Early ... unclear (often the case ... AI - Low = secondary ... Insufficiency #Diagnosis #Algorithm
Hyponatremia Diagnosis Algorithm
UOsm ≥ POsm - Vasopressin-Dependent
 • UNa < 20 mEq/L - Appropriate (↓ EABV)
Algorithm UOsm ... Vasopressin-independent - Consider: Primary ... polydipsia, Low ... #differential #algorithm ... #causes #nephrology
Volume Based Approach to Hyponatremia
Hypovolemic, Serum uric acid >4
 • Urine Na <20: Extra-renal losses
 •
Volume Based Approach ... to Hyponatremia ... Hypothyroidism, Low ... Glucocorticoid deficiency, Primary ... #algorithm #diagnosis
Physiologic Approach to Hypotonic Hyponatremia
The next time you have a case of hypotonic hyponatremia, give the
Physiologic Approach ... time you have a case ... the physiologic approach ... normal volume-based algorithm ... water intake (Primary
Diagnosis Adrenal Insufficiency - Algorithm

Step 1) Screening Test: 6-8AM Cortisol Level
 - Early morning cortisol levels
Insufficiency - Algorithm ... Cortisol Level - Early ... vs secondary AI ... - Low ACTH is ... Insufficiency #Algorithm
Hypokalemia Differential Diagnosis Algorithm
Hypertensive:
 • High Al, Low R - Primary aldosteronism
 • High Al, High
Differential Diagnosis Algorithm ... R - Primary aldosteronism ... High Al, High R - Secondary ... Syndrome, Congenital Adrenal ... #nephrology #causes
Causes of Primary Amenorrhea - Differential Diagnosis Algorithm
No onset of menarche by age 16 with secondary
Causes of Primary ... Differential Diagnosis Algorithm ... Etiology - High FSH, Low ... Differential #Diagnosis #Algorithm ... #Gynecology