33 results
Syphilis Serologic Testing - Treponemal and Non-Treponemal Testing Algorithms
Treponemal Testing:
 • Confirmatory or Screening - Detection
Algorithms Treponemal ... Definitive • High ... Definitive • Low ... Cost, Fast • RPR ... #diagnosis #Treponemal
Differential diagnosis on HRCT
Most of our knowledge about imaging findings in interstitial lung disease comes from
Differential diagnosis ... reticular, nodular, high ... and low attenuation ... on a CXR. ... #Diagnosis #Radiology
Hyponatremia Differential Diagnosis Algorithm - Utilizing Uric Acid 
ADH promotes Urea/uric acid excretion along with water
Hyponatremia Differential Diagnosis ... Algorithm - Utilizing ... Uric Acid - Low ... Acid → SIADH - High ... Acid → renal salt wasting
Adrenal Insufficiency Differential Diagnosis Algorithm
Clinical suspicion: Weakness, fatigue, nausea, musculoskeletal pain, dizziness, volume depletion, abdominal pain,
Algorithm Clinical ... , hypoglycemia Testing ... Baseline plasma ACTH Low ... insufficiency likely: • High ... insufficiency • Low
Lymphomas and Lymphoproliferative Disorders - Differential Diagnosis Algorithm
Hodgkin Lymphoma ~40% - Characteristic For Reed-Sternberg (RS) Cells
- Differential Diagnosis ... Algorithm Hodgkin ... involvement, irregular pattern ... B-Cell ~90% • Low ... age range • High
Adrenal Insufficiency Diagnosis Algorithm - Evaluation of HPA Axis Response to ACTH

Early am cortisol < 3
Algorithm - Evaluation ... then go to stim testing ... Measure ACTH: - High ... primary AI - Low ... #Algorithm #ACTH
Hypokalemia Evaluation Algorithm

Before evaluating hypokalemia, life threatening complications such as arrhythmias and paralysis should be looked
Hypokalemia Evaluation Algorithm ... urinary losses: • High ... consumption • Low ... #Hypokalemia #diagnosis ... #Algorithm #differential
Diabetic Myonecrosis (Diabetic Muscle Infarction)
 • Spontaneous ischemic necrosis of skeletal muscle (anterior thigh or calf)
complications • Common pattern ... : ↑CK, ↑ESR, ↑CRP ... • Diagnosis: ... rest, analgesia (low ... treatment • High
Platelet disorders and Aggregometry
Glanzmann Thrombasthenia
 • Defective aggregation to all agonists except ristocetin
 • Normal platelet,
similar aggregation pattern ... aggregation to high-dose ... agonists • This pattern ... considered first-line testing ... #differential #diagnosis
Diagnosis Adrenal Insufficiency - Algorithm

Step 1) Screening Test: 6-8AM Cortisol Level
 - Early morning cortisol levels
Insufficiency - Algorithm ... specificity for AI (but low ... require Cosyntropin testing ... - Low ACTH is ... pituitary gland) - High