10 results
Approach to Thyroid Function Tests in the Evaluation of Hyperthyroidism
 • Low TSH, Low normal T4
Approach to Thyroid Function ... T4 +/- T3 → Primary ... T3 → Central (secondary ... #algorithm #diagnosis ... 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 ... normal adrenal function ... AI - Low = secondary ... Insufficiency #Diagnosis #Algorithm
Adrenal Insufficiency Differential Diagnosis Algorithm
Clinical suspicion: Weakness, fatigue, nausea, musculoskeletal pain, dizziness, volume depletion, abdominal pain,
Weakness, fatigue, nausea ... Low Cortisol Response ... - Primary adrenal ... insufficiency • Low ... - Secondary adrenal
Pruritus - Generalized Differential Diagnosis Algorithm - Systemic and Primary Causes
== Primary Skin Lesions ==
Macules /
Differential Diagnosis Algorithm ... Causes == Primary ... Mellitus Liver Function ... #secondary #systemic ... #causes
Primary Adrenal Insufficiency:
 • ACTH stimulation test - Synthetic ACTH does not stimulate cortisol secretion because
Primary Adrenal ... aldosterone - Low ... in cases in which ... autoimmune-mediated primary ... Insufficiency #Evaluation #laboratory
Causes of Primary Amenorrhea - Differential Diagnosis Algorithm
No onset of menarche by age 16 with secondary
Causes of Primary ... by age 16 with secondary ... Etiology - High FSH, Low ... Hypothalamic: • Functional ... Hyperprolactinemia • Hypothyroidism
Pruritus - No Primary Skin Lesion - Differential Diagnosis Algorithm

Blood Glucose:
 • Diabetes Mellitus
Liver Function Tests/Enzymes:
Pruritus - No Primary ... Mellitus Liver Function ... • Hyperthyroidism ... #Pruritus #secondary ... #causes
Causes of Secondary Amenorrhea - Differential Diagnosis Algorithm
Absence of menses for more than 3 cycles or
Causes of Secondary ... FSH, Low estrogen ... : • Functional ... compression) • Hypothyroidism ... #Causes #OBGyn
Causes of Hypomagnesemia
 • Redistribution: IV glucose, Correction of diabetic ketoacidosis, IV hyperalimentation, Refeeding after starvation,
Causes of Hypomagnesemia ... hormone secretion, Hyperthyroidism ... Hypercalcemic states, Primary ... or secondary aldosteronism ... nephrology #magnesium #low
Low Alkaline Phosphatase - Hypophosphatasia 

Is Low Alkaline Phosphatase Of Clinical Importance?

ALP enzyme- Discovered in 1923
Low
pain • loss of secondary ... severe mobility/functional ... Wilson's disease • hypothyroidism ... Phosphatase: • Other causes ... • Elevation of urinary