12 results
Hypercalcemia Evaluation
1) Clinical clues
 - Is the patient symptomatic?
 - Family history?
 - Have you done
1) Clinical clues ... to SPEP/SFLC, TSH ... #differential # ... diagnosis #endocrinology ... #workup
Laboratory Evaluation of Patients for Thyroid Disease 
Hyperthyroidism:
 • Graves disease - TSH low; free T4
Laboratory Evaluation ... high; in some cases ... free T4 low in a newborn ... #hyperthyroid #differential ... #diagnosis #endocrinology
Approach to Thyroid Function Tests in the Evaluation of Hyperthyroidism
 • Low TSH, Low normal T4
Thyroid Function Tests ... in the Evaluation ... Hyperthyroidism: Work-up ... Hyperthyroidism #algorithm #diagnosis ... #endocrinology
Causes of Thrombocytopenia and Platelet Disorders - Differential Diagnosis and Workup
History:
 - Prior platelet count, family
Platelet Disorders - Differential ... Diagnosis and Workup ... K), H. pylori test ... - Bone marrow evaluation ... #Diagnosis #Causes
Causes of Secondary Hypertension - Differential Diagnosis and Screening Testing
Common causes: 
 • Renal parenchymal disease
Hypertension - Differential ... Diagnosis and Screening ... #Diagnosis #Causes ... #Screening #Workup ... #table
Chronic Diarrhea - Workup
Osmotic:
 • Consider food diary and trial avoiding certain foods or meds, Consider
Chronic Diarrhea - Workup ... hydrogen breath test ... Hypermotility: • TSH ... #diagnosis #differential ... #testing #evaluation
Causes of Secondary Hypertension - Workup and Differential Diagnosis
Approach (when evaluation should be done):
1. Severe or
Hypertension - Workup ... and Differential ... (when evaluation ... Vasculitis • Endocrinologic ... #causes #Differential
Primary Adrenal Insufficiency:
 • ACTH stimulation test - Synthetic ACTH does not stimulate cortisol secretion because
aldosterone - Low in cases ... Insufficiency #Evaluation ... #laboratory #diagnosis ... #testing #endocrinology ... #workup
Allopecia - Differential Diagnosis Framework for Hair Loss

Localized / Focal Hair Loss Pattern:
 • Scarring Alopecia:
Allopecia - Differential ... Diagnosis Framework ... disease • Pull test ... : • TSH ... • Laboratory evaluation
TTP - Laboratory Evaluation for Thrombotic Thrombocytopenic Purpura

Activity of von Willebrand factor-cleaving protease activity - A
TTP - Laboratory Evaluation ... value is low, tests ... indirect antiglobulin tests ... WBC count and differential ... #Workup #Hematology