3106 results
HACEK is the acronym commonly used to describe and help doctors to remember a group of
which can also cause ... are not common; less ... endocarditis is caused ... endocarditis is caused
Hypoxemic Respiratory Failure - Differential Diagnosis Framework
DECREASED INSPIRED OXYGEN
 • Low PATM Can decrease first part
average settings • Causes ... gas equation • Causes ... capillary-alveolar interface • Less ... • Most common cause ... to hypoxemia • Causes
Black and Bloody Stools - Melena and Hematochezia
Melena - Refers to passage of black, tarry (sticky
gastrointestinal tract (less ... Less commonly, when ... result from other causes ... or anus; much less ... #Differential #Causes
Subtrochanteric Femur Fracture: Pathogenesis and clinical findings
 • Subtrochanteric region spans 5 cm distally from the
distally from the lesser ... fractures in elderly Causes ... #differential #causes
Causes of Wide Pulse Pressure - Differential Diagnosis
Physiologic:
 • Advanced age-arteriosclerosis (less compliant arteries)
 • Well
Causes of Wide Pulse ... age-arteriosclerosis (less ... Differential #Diagnosis #causes
ST segment elevation in acute myocardial ischemia

ST segment elevations with straight (horizontal, upsloping or downsloping) or
hand, are much less ... likely to be caused ... the underlying cause
Vasopressors and Inotropes - Pharmacology Summary
Vasopressors
Phenylephrine (alpha-1)
 • Increases BP, SVR
 • Risk of reflex bradycardia
• Higher doses cause ... chronotropic • V1, vessel ... Increases CO, less ... cAMP/cGMP • Causes
Mydriasis and Miosis - Differential Diagnosis Framework

Causes of Mydriasis:
Dilated pupils (mydriasis) more than 7mm
 • Unilateral
Diagnosis Framework Causes ... Hypothermia Causes ... Constricted pupils less ... ophthalmology #causes
Causes of Erythema Nodosum
Common
 - Idiopathic (up to 55 percent)
 - Infections: streptococcal pharyngitis (28 to
Causes of Erythema ... colitis Rare (less ... Erythema #Nodosum #Causes
Adrenal Insufficiency - Diagnosis and Management Summary
Primary Adrenal Insufficiency:
Most Common Cause in the US: Autoimmune Adrenalitis
Other
: Most Common Cause ... Adrenalitis Other causes ... Causes of Secondary ... Cortisol level of less