54 results
Interpretation of Hepatitis B Serologies 
HBsAg - HBcAb (total) - HBcAb (IgM) - HBsAb
Susceptible to HBV
Immune
infection vs "Low ... interpreation #testing ... #laboratory
Infectious Diarrhea - Laboratory Testing

Clostridium difficile
Salmonella enterica, Shigella spp, Campylobacter spp 
Salmonella enterica serovars Typhi and
Infectious Diarrhea - Laboratory ... Testing Clostridium ... Microsporidia (now ... Diarrhea #diagnosis #differential ... #Laboratory #Testing
Hyponatremia Differential Diagnosis Algorithm - Utilizing Uric Acid 
ADH promotes Urea/uric acid excretion along with water
Hyponatremia Differential ... Uric Acid - Low ... Acid → renal salt wasting ... #Hyponatremia #Differential ... nephrology #sodium #low
Adrenal Insufficiency Differential Diagnosis Algorithm
Clinical suspicion: Weakness, fatigue, nausea, musculoskeletal pain, dizziness, volume depletion, abdominal pain,
Insufficiency Differential ... , hypoglycemia Testing ... Baseline plasma ACTH Low ... insufficiency • Low ... Insufficiency #Differential
Cancer agents and Electrolyte Disorders
 • Hypocalcemia: Cisplatin from Low Mg, Cetuximab- due to low Mg
Axitinib,
Cisplatin from Low ... Cetuximab- due to low ... Panitumumab- renal wasting ... Cisplatin- renal salt wasting ... chemotherapy #diagnosis #differential
Hypophosphatemia Diagnostic Algorithm
- GI Losses
- Redistribution
- 1° HPT
- 1° Renal PO4 wasting: Hereditary, TIO, Fanconi Syndrome,
- 1° Renal PO4 wasting ... Hypophosphatemia #phosphorus #low ... diagnosis #Algorithm #differential
Laboratory Evaluation of Patients for Thyroid Disease 
Hyperthyroidism:
 • Graves disease - TSH low; free T4
Laboratory Evaluation ... disease - TSH low ... adenoma - TSH low ... free T4 and T3 low ... #hyperthyroid #differential
Hypokalemia - Differential Diagnosis
Poor Intake 
 - Starvation
 - Anorexia
GI Losses 
 - Vomiting / NG
Hypokalemia - Differential ... type 4) - Salt wasting ... #Hypokalemia #Differential ... #Diagnosis #Low
Approach to Undifferentiated Shock - OnePager Summary
Shock occurs when there is inadequate blood flow (CO) &
Sepsis (may develop low ... (pancreatitis, low ... Renal Losses(salt-wasting ... diuresis, diuretics), Low ... Shock #diagnosis #differential
How to use C-reactive protein (CRP)- Review https://ep.bmj.com/content/early/2018/07/19/archdischild-2018-315079

 - An CRP alone cannot be used to
How to use C-reactive ... CReactiveProtein #VisualAbstract ... Pediatrics #Diagnosis #Laboratory