19 results
Causes of Anemia with Normal Mean Corpuscular Volume (MCV) - Differential Diagnosis Algorithm
Decreased WBCs
 - Decreased/NormaI
with Normal Mean ... Reticulocytosis • Primary ... Hypersplenism • Secondary ... PRV, Chronic) Normal ... Hemoglobinopathy - Normal
Adrenal Insufficiency Differential Diagnosis Algorithm
Clinical suspicion: Weakness, fatigue, nausea, musculoskeletal pain, dizziness, volume depletion, abdominal pain,
Differential Diagnosis Algorithm ... Weakness, fatigue, nausea ... - Primary adrenal ... insufficiency • Low or normal ... Secondary adrenal
Adrenal Insufficiency Diagnosis Algorithm - Evaluation of HPA Axis Response to ACTH

Early am cortisol < 3
Insufficiency Diagnosis Algorithm ... OR secondary AI ... unclear (often the case ... this indicates normal ... Insufficiency #Diagnosis #Algorithm
Causes of Primary and Secondary Amenorrhea - Differential Diagnosis Algorithm
Primary Amenorrhea - No onset of menarche
Causes of Primary ... Differential Diagnosis Algorithm ... • Ovarian - Normal ... Differential #Diagnosis #Algorithm ... #Causes #OBGyn
Abnormal Lipid Profiles - Differential Diagnosis Algorithm

Increased Cholesterol and Triglycerides 
 - Genetic Causes
Abnormal Lipid Profiles ... Differential Diagnosis Algorithm ... Deficiency • Primary ... #Dyslipidemia #Abnormal ... Differential #Diagnosis #Algorithm
Primary and Secondary Causes of Hypertension - Differential Diagnosis Algorithm
Primary (Essential) (95%) - Onset between age
Primary and Secondary ... Causes of Hypertension ... Differential Diagnosis Algorithm ... Mislabelled - Repeatedly normal ... Differential #Diagnosis #Algorithm
Primary Adrenal Insufficiency:
 • ACTH stimulation test - Synthetic ACTH does not stimulate cortisol secretion because
Primary Adrenal ... aldosterone - Low in cases ... autoimmune-mediated primary ... antibody test Secondary ... aldosterone - Often normal
Hypokalemia Differential Diagnosis Algorithm
Hypertensive:
 • High Al, Low R - Primary aldosteronism
 • High Al, High
High Al, Low R - Primary ... High Al, High R - Secondary ... Hyperplasia • Normal ... Al, Normal R - ... #nephrology #causes
Approach to Thyroid Function Tests in the Evaluation of Hyperthyroidism
 • Low TSH, Low normal T4
• Low TSH, Low normal ... • Low TSH, normal ... Can repeat labs ... high T4 +/- T3 → Primary ... Scan • High or normal
Causes of Secondary Amenorrhea - Differential Diagnosis Algorithm
Absence of menses for more than 3 cycles or
Causes of Secondary ... Differential Diagnosis Algorithm ... menstruating Ovarian - Normal ... progesterone challenge, normal ... #Causes #OBGyn