3372 results
Point of Care Ultrasound (POCUS) - Basics
Nomenclature:
 - Echogenicity = brightness
 - Hyperechoic = more echogenic
Care Ultrasound (POCUS ... than surrounding tissue ... to surrounding tissues ... than surrounding tissue ... Brightness of image #pocus
Shock - Pathophysiology 
Inadequate tissue perfusion to meet O2, nutrient requirements
1. Distributive Shock
2. Hypovolemic Shock
3. Cardiogenic
Shock - Pathophysiology ... Inadequate tissue ... Shock #Shock #Pathophysiology
Oxygen-Hemoglobin Dissociation Curve

Left Shift (↓ O2 unloading to tissue), Left = Lower:
 • ↓ H+ (↑
O2 unloading to tissue ... O2 unloading to tissue ... Dissociation #Curve #pathophysiology
Pathophysiology of Hypocomplementemic Urticarial Vasculitis

C1q/anti-C1q antibiody ->
Immune Complex Formation - Complement Pathway Activation (C3a and C5a)
Pathophysiology ... Vasculitis + Tissue ... Vasculitis #HUV #Pathophysiology
Hypoxemia vs Hypoxia
Hypoxemia - Partial pressure of arterial oxygen (PaO2) is below normal
Hypoxia - Insufficient oxygen
supply at the tissue ... without hypoxemia - Tissues ... O2 delivery to tissues
Oxyhemoglobin Dissociation Curve 

Left Shift - decreased unloading of O2 at tissue level (i.e.  increased
unloading of O2 at tissue ... unloading of O2 at tissue ... Dissociation #Curve #Pathophysiology
Using Stroke Windows for Detecting Ischemia on Head CT
When evaluating a CT head for possible stroke,
for comparing tissues ... blood/lung vs soft tissue ... for comparing tissues ... (similar soft tissues
Clamp Types - Common Surgical Instruments
Also called locking forceps, these are ratcheted instruments used to hold
instruments used to hold tissue ... used to grasp tissue ... grasping larger tissues ... clamp used to hold tissue
Feedback Loop: Growth Hormone (GH)
Growth Hormone:
 • Liver -> GHR activates JAK-STAT pathway -> Incr IGF1
survival • Adipose Tissue ... feet - Soft tissue ... endocrinology #pathophysiology
NSAIDS and their effects on the Kidney - Pathophysiology

Arachidonic Acid metabolites into alternative pathways that modify
on the Kidney - Pathophysiology ... Necrosis of kidney tissue ... nephrology #Effects #pathophysiology