31 results
C5-C9 Deficiency - Pathogenesis and Clinical Findings
Note:
 • Risk of invasive meningococcal disease is 1000-10000x higher
C5-C9 Deficiency ... higher in C5-C9 deficiency ... is rare Normal complement ... response: The complement ... #pathophysiology
Complement Deficiency Testing Algorithm
 • Normal CH50 and AH50 AND High suspicion for complement deficiency
 •
Complement Deficiency ... Testing Algorithm ... deficiency • Low ... #Deficiency #Testing ... #Algorithm #hematology
Complement 1 esterase inhibitor (C1-INH) Deficiency Testing Algorithm
INDICATIONS FOR TESTING:
 • Recurrent angioedema (without urticaria)
 •
Complement 1 esterase ... inhibitor (C1-INH) Deficiency ... Testing Algorithm ... ARUPLabs #C1INH #Complement ... #Testing #Algorithm
Causes of Extravascular and Intravascular Hemolysis - Differential Diagnosis Algorithm
Extravascular - Spleen and RES-mediated hemolysis
 -
Differential Diagnosis Algorithm ... Defects • G6PD deficiency ... • PK deficiency ... perfringens - Complement-Mediated ... Differential #Diagnosis #Algorithm
Growth Hormone Deficiency - Pediatrics - Testing Algorithm
 - Insulin-Like Growth Factor 1 (IGF-1) with Calculated
Growth Hormone Deficiency ... - Pediatrics - Testing ... Algorithm - Insulin-Like ... Growth #Hormone #Deficiency ... #Pediatrics #Algorithm
Hypophosphatemia - Measurement of urine phosphate excretion - Differential Diagnosis Algorithm
 • GI loss
 • Redistribution
Differential Diagnosis Algorithm ... Hyperparathyroidism • Vit D deficiency ... Primary Renal PO4 wasting ... Differential #Diagnosis #Algorithm
Hemolytic Anemia - Differential Diagnosis Algorithm
 • Sickle cells - Consider sickle cell disease (diverse genotypes):
Differential Diagnosis Algorithm ... ' nucleotidase deficiency ... , Hexokinase deficiency ... Differential #Diagnosis #Algorithm ... workup #hematology #testing
Rapidly Progressive Glomerulonephritis (RPGN)
RPGN has three primary pathophysiologic causes differentiated by immunofluorescence

Immune Complex Mediated (granular staining):
three primary pathophysiologic ... staining): • Low Complement ... Idiopathic • Normal Complement ... differential #diagnosis #algorithm
Hypophosphatemia Diagnostic Algorithm
- GI Losses
- Redistribution
- 1° HPT
- 1° Renal PO4 wasting: Hereditary, TIO, Fanconi Syndrome,
Hypophosphatemia Diagnostic Algorithm ... - 1° Renal PO4 wasting ... glucose - Vitamin D Deficiency ... low #diagnosis #Algorithm
Causes of Hyponatremia - Differential Diagnosis Algorithm
Hypovolemia, UNa > 20: 
 • Renal losses, Diuretic excess,
Differential Diagnosis Algorithm ... Mineral corticoid deficiency ... , Salt-losing deficiency ... Cerebral salt wasting ... Differential #Diagnosis #Algorithm