7 results
Approach to Thyroid Function Tests in the Evaluation of Hyperthyroidism
 • Low TSH, Low normal T4
Approach to Thyroid Function ... • Low TSH, Low ... T4 +/- T3 → Primary ... #algorithm #diagnosis ... endocrinology #TFTs #TSH #Interpretation
Thyrotoxic Periodic Paralysis - Illness Script
 • Epidemiology: Asian men age 20-30 with hyperthyroidism of any
age 20-30 with hyperthyroidism ... Heavy exercise, fasting ... Hypokalemia +/- low ... high fT4 or high T3 ... , Potassium supplements
Hypokalemia - Differential Diagnosis Algorithm

Transcellular Shift:
 • Alkalosis
 • ↑ beta-2 adrenergic simulation 
 • Erythropoiesis
Hypokalemia - Differential ... Diagnosis Algorithm ... Hypokalemic periodic paralysis ... GI losses (NG suction ... #potassium
Hypokalemia Evaluation Algorithm

Before evaluating hypokalemia, life threatening complications such as arrhythmias and paralysis should be looked
Hypokalemia Evaluation Algorithm ... arrhythmias and paralysis ... consumption • Low ... #differential # ... #low
Causes of Secondary Amenorrhea - Differential Diagnosis Algorithm
Absence of menses for more than 3 cycles or
Diagnosis Algorithm ... FSH, Low estrogen ... : • Functional ... (e.g. eating disorder ... compression) • Hypothyroidism
Causes of Primary Amenorrhea - Differential Diagnosis Algorithm
No onset of menarche by age 16 with secondary
Primary Amenorrhea - Differential ... Diagnosis Algorithm ... Etiology - High FSH, Low ... Hypothalamic: • Functional ... Hyperprolactinemia • Hypothyroidism
Pragmatic diagnostic algorithm for hypokalemia. 
***Typical presentations: 
 • Vomiting: urine Na/Cl > 1.6, low urine
urine Na/Cl > 1.6, low ... confirmed via genetic testing ... correcting serum potassium ... in most cases; interpretation ... hypokalemia #diagnosis #differential