2325 results
Hypocalcemia Laboratory Evaluation

Serum levels of PTH, phosphorus, 25-hydroxyvitamin D, and 1,25-dihydroxyvitamin D can help differentiate between
dihydroxyvitamin D can help differentiate ... Calcium-sensing receptor activating ... Endocrinology #Differential
Growth Hormone Excess - Pathogenesis and clinical findings
 • Acromegaly and gigantism share the same pathophysiology
hemianopsia IGF-1 Overproduction ... GrowthHormone #GH #Excess #Overproduction
Transplant Infections Timeline
Pre-transplant:
 • Common bacteria (endogenous): Staphylococci (skin), Gram-negative bacilli (gut)
 • Viruses: HSV (reactivation)
Engraftment:
Viruses: HSV (reactivation ... Viruses: HSV (reactivation ... ), VZV (reactivation ... ), CMV (reactivation ... Infections #Timeline #differential
Causes of Edema - Differential Diagnosis
Pitting Edema:
  ↑ Hydrostatic - Too Much Fluid
Causes of Edema - Differential ... Fluid • RAAS Activation ... nonpitting #Edema #Differential
Anaphylaxis: Pathogenesis
Anaphylaxis is a Type 1 hypersensitivity reaction
While the primary mechanism of anaphylaxis is mast cell
anaphylaxis is mast cell activation ... Inappropriate mast cell activation ... cells • ANS activation
Causes of Nephrolithiasis - Differential Diagnosis Algorithm
Radio-opaque - Calcium-containing - 90% of stones
Radiolucent - Non-calcium 10%
Nephrolithiasis - Differential ... Hyperoxaluria: • Enteric overproduction ... Nephrolithiasis #Nephrology #Differential
The parasympathetic and sympathetic systems - Activation and inhibition pathways by organ system

#Sympathetic #Parasympathetic #Systems #Pathways
sympathetic systems - Activation
Fibrinolysis. 
Fibrinolysis occurs when plasminogen is activated to plasmin under the influence of factors such as
tissue plasminogen activator ... thrornbolytic drugs by activating
Hypocalcemia - Diagnosis and Management
PTH Independent (↑ PTH)
 • LOW VIT D
    -
Intake (diet) - Activation ... endocrinology #differential
Macrophage Activation Syndrome (MAS)
Classified among the secondary or acquired forms of haemophagocytic lymphohistiocytosis (sHLH)

What?
A subset of
Macrophage Activation ... hemophagocytosis and cytokine overproduction ... MAS #Macrophage #Activation