2267 results
RHABDOMYOLYSIS
•	Characterized by skeletal muscle breakdown & necrosis. 
•	Elevated Creatine kinase (CK) hallmark of rhabdomyolysis. 
•	Defined based
Creatine kinase (CK ... Defined based on CK ... • Half-life of CK ... peaks in 3 days, & normalizes ... and cefdinir #CK
INR Chart - International Normalized Ratio 

#INR #International #Normalized #Ratio #Range #Laboratory
International Normalized ... International #Normalized
Creatine kinase (CK) is an intracellular enzyme present in skeletal muscle, myocardium & brain; smaller amounts
Creatine kinase (CK ... CK may increase ... creatine kinase (CK ... CK functions as ... first 3 days, and normalizes
Myositis and Myopathies
Polymyositis 
 • Progressive, symmetric muscle weakness 
 • Elevated CK, +Anti-Jo, +Anti-Mi2
Dermatomyositis
weakness • Elevated CK ... rash • Elevated CK ... Elevated ESR, Normal CK ... mildly elevated CK ... Myopathies #myopathy #differential
Creatine Kinase - Causes of Elevated CK Levels
Acute CK Elevation (Pain > Weakness):
 • RHABDOMYOLYSIS
Causes of Elevated CK ... Levels Acute CK ... ASYMPTOMATIC: Macro CK ... Kinase #Elevated #CK ... #differential #
Inflammatory Myopathies
Dermatomyositis
 • Onset: Subacute
 • Pattern: Proximal
 • CK: Up to 50X ULN
 • Autoantibodies:
: Proximal • CK ... : Proximal • CK ... : Proximal • CK ... and distal • CK ... Inflammatory #Myopathies #differential
Mixing Study
 • Clotting tests can be abnormal due to either a clotting factor deficiency, or
Clotting test normalizes ... test does not normalize
Myositis and Myopathies
#ESR #CK #Differential diagnosis of myopathy 
#Inflammatory #myopathies	#Dermatomyositis	
#muscle weakness
#Polymyositis	
#Inclusion body myositis
#Polymyalgia rheumatica	
#Fibromyalgia	
#Hypothyroid myopathy	
#Muscle stiffness
#Drug-induced
Myopathies #ESR #CK ... #Differential diagnosis
Systemic Lupus Erythematosus (SLE): Musculoskeletal Manifestations

 • Immune Complex Deposition
    - Arthralgia, Arthritis
Weakness, Normal CK ... Weakness, Incr CK ... therapy), Normal CK
COMMONLY ENCOUNTERED MEDICATIONS THAT INCREASE OR DECREASE WARFARIN’S INTERNATIONAL NORMALIZED RATIO (INR)

#Pharmacology #Warfarin #Medications #Interactions #INR
INTERNATIONAL NORMALIZED