7 results
Approach to Thyroid Function Tests in the Evaluation of Hyperthyroidism
 • Low TSH, Low normal T4
Approach to Thyroid Function ... normal T4 +/- T3 ... → Primary Hyperthyroidism ... Hyperthyroidism #algorithm ... endocrinology #TFTs #TSH #Interpretation
Causes of Primary Amenorrhea - Differential Diagnosis Algorithm
No onset of menarche by age 16 with secondary
Causes of Primary ... Differential Diagnosis Algorithm ... Hypothalamic: • Functional ... (e.g. eating disorder ... #Causes #OBGyn
Adrenal Insufficiency Diagnosis Algorithm - Evaluation of HPA Axis Response to ACTH

Early am cortisol < 3
Insufficiency Diagnosis Algorithm ... unclear (often the case ... then go to stim testing ... normal adrenal function ... Insufficiency #Diagnosis #Algorithm
Hypokalemia Evaluation Algorithm

Before evaluating hypokalemia, life threatening complications such as arrhythmias and paralysis should be looked
Hypokalemia Evaluation Algorithm ... arrhythmias and paralysis ... from other causes ... suggests extra-renal causes ... ↑ Aldosterone: Primary
Causes of Secondary Amenorrhea - Differential Diagnosis Algorithm
Absence of menses for more than 3 cycles or
Causes of Secondary ... Differential Diagnosis Algorithm ... estrogen: • Functional ... (e.g. eating disorder ... #Causes #OBGyn
Causes of Hypokalemia
Transcellular Shifts:
 - Alkalosis, Increased plasma insulin (treatment of diabetic ketoacidosis), ß-Adrenergic agonists, Hypokalemic
Causes of Hypokalemia ... hypomagnesemia), Eating ... , nasogastric suction ... thiazide-like diuretics), Primary ... #Hypokalemia #Causes
Urinalysis & Urine Sodium 
Theophilus Protospatharius, a seventh-century physician who wrote the first manuscript focused exclusively
Urinis", determined heating ... includes the complete analysis ... • Urinary casts ... with normal renal function ... leucocyte-esterase #urine #UNa #casts