8 results
Approach to Thyroid Function Tests in the Evaluation of Hyperthyroidism
 • Low TSH, Low normal T4
Approach to Thyroid Function ... Tests in the Evaluation ... normal T4 +/- T3 ... Hyperthyroidism #algorithm ... endocrinology #TFTs #TSH #Interpretation
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 ... Standard Stim test ... normal adrenal function
Causes of Primary Amenorrhea - Differential Diagnosis Algorithm
No onset of menarche by age 16 with secondary
Differential Diagnosis Algorithm ... • Vanishing Testes ... Syndrome • Absent Testes ... Hypothalamic: • Functional ... (e.g. eating disorder
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 ... differential #potassium #nephrology
Urinalysis & Urine Sodium 
Theophilus Protospatharius, a seventh-century physician who wrote the first manuscript focused exclusively
Urinis", determined heating ... includes the complete analysis ... Clarity Dipstick test ... specific gravity test ... with normal renal function
Causes of Hypokalemia - Differential Diagnosis Algorithm
Decreased intake (rare cause in isolation)
GI loss - Urine loss
Causes of Hypokalemia ... Differential Diagnosis Algorithm ... Vomiting • NG suction ... #Hypokalemia #Nephrology ... Differential #Diagnosis #Algorithm
Causes of Hypokalemia
Transcellular Shifts:
 - Alkalosis, Increased plasma insulin (treatment of diabetic ketoacidosis), ß-Adrenergic agonists, Hypokalemic
Causes of Hypokalemia ... hypomagnesemia), Eating ... , nasogastric suction ... #Hypokalemia #Causes ... differential #diagnosis #nephrology
Pragmatic diagnostic algorithm for hypokalemia. 
***Typical presentations: 
 • Vomiting: urine Na/Cl > 1.6, low urine
Pragmatic diagnostic algorithm ... confirmed via genetic testing ... continued in most cases ... ; interpretation ... #nephrology