12 results
Approach to Thyroid Function Tests in the Evaluation of Hyperthyroidism
 • Low TSH, Low normal T4
Thyroid Function Tests ... • Low TSH, Low normal ... : Work-up similar ... T3 → Central (secondary ... #algorithm #diagnosis
Algorithm for Investigation of Abnormal Coagulation Tests
- Prolonged PT
- Prolonged aPTT and Prolonged PT
- Prolonged aPTT

Dr.
Algorithm for Investigation ... of Abnormal Coagulation ... Tests - Prolonged ... #APTT #Laboratory ... Hematology #Diagnosis #Workup
Causes of Secondary Hypertension - Differential Diagnosis and Screening Testing
Common causes: 
 • Renal parenchymal disease
Causes of Secondary ... and Screening Testing ... • Hyperthyroidism ... Acromegaly #Secondary ... Causes #Screening #Workup
Primary and Secondary Causes of Hypertension - Differential Diagnosis Algorithm
Primary (Essential) (95%) - Onset between age
Differential Diagnosis Algorithm ... Mislabelled - Repeatedly normal ... taken at home, work ... hypertension) • Hypothyroidism ... Differential #Diagnosis #Algorithm
Adrenal Insufficiency Diagnosis Algorithm - Evaluation of HPA Axis Response to ACTH

Early am cortisol < 3
Insufficiency Diagnosis Algorithm ... then go to stim testing ... Standard Stim test ... this indicates normal ... #Stimulation #Test
Primary Adrenal Insufficiency:
 • ACTH stimulation test - Synthetic ACTH does not stimulate cortisol secretion because
Secondary Adrenal ... aldosterone - Often normal ... Insufficiency #Evaluation #laboratory ... #diagnosis #testing ... endocrinology #workup
Abnormal liver function tests algorithm.
 This figure details the initial response to abnormal liver blood tests.
tests algorithm ... urgent referral to secondary ... decision for repeat testing ... or referral to secondary ... #Algorithm #Hepatology
Adrenal Insufficiency Differential Diagnosis Algorithm
Clinical suspicion: Weakness, fatigue, nausea, musculoskeletal pain, dizziness, volume depletion, abdominal pain,
Differential Diagnosis Algorithm ... , hypoglycemia Testing ... ACTH) stimulation test ... insufficiency • Low or normal ... baseline ACTH - Secondary
Causes of Primary Amenorrhea - Differential Diagnosis Algorithm
No onset of menarche by age 16 with secondary
Differential Diagnosis Algorithm ... by age 16 with secondary ... age 14 without secondary ... • Vanishing Testes ... Hyperprolactinemia • Hypothyroidism
Causes of Secondary Amenorrhea - Differential Diagnosis Algorithm
Absence of menses for more than 3 cycles or
Causes of Secondary ... Differential Diagnosis Algorithm ... Functional (e.g. eating ... compression) • Hypothyroidism ... Cervical stenosis #Secondary