3790 results
CARDIAC MYOCYTE POTENTIALS

#Pathophysiology #Cardiology #Cardiac #Myocyte #Ventricular #ActionPotentials #Channels #Phases
CARDIAC MYOCYTE ... Cardiology #Cardiac #Myocyte
Action potential in cardiomyocytes
The action potential in typical cardiomyocytes is composed of 5 phases (0-4), beginning
Depolarization Phase 1: ... ActionPotential #Myocytes
Innate Immune Cells - Pathophysiology
The innate immune system consists of granulocytes, mast cells, natural killer cells,
killer cells, and monocytes ... Monocytes and neutrophils ... Monocytes and B-cells
Focus Assessed Transthoracic Echo (FATE) - Basic FATE views

Pos 1: Subcostal 4-chamber

Pos 2: Apical 4-chamber

Pos 3:
Focus Assessed Transthoracic ... FATE views Pos 1: ... Echocardiogram #POCUS
Cardiac Myocyte Contractile cycle
 - Ca2+ binds to TnC → TnI is inhibited → conformational change
Cardiac Myocyte ... Pathophysiology #Cardiology #Myocyte
D-Sign on Ultrasound
Right Ventricular Pressure vs Volume Overload
Eccentricity Index (EI) = D2/D1
RV Overload “D Sign” EI
“D Sign” EI > 1 ... - POCUS 101 @Pocus101 ... diagnosis #cardiology #pocus
Characteristics of Selected Pneumonias

Streptococcus pneumoniae (pneumococcus). Gram-positive diplococci. 
Haemophilus influenzae. Pleomorphic gram-negative coccobacilli. 
Staphylococcus aureus. Plump
PMNs and monocytes
Intubation Confirmation on POCUS

See the round, shadowing structures?
1. ET Tube in Trachea
2. NG Tube in Esophagus

-
Confirmation on POCUS ... 1. ... #Confirmation #POCUS
Stroke Volume & Cardiac Output Measurement on POCUS
Accurately measure LVOT diameter:
1. Obtain PLAX 
2. Zoom to
Measurement on POCUS ... LVOT diameter: 1. ... Calculate VTI: 1. ... #Measurement #POCUS
Fever - Pyrogen Pathophysiology

EXOGENOUS PYROGEN
 • Bacteria: Lipopolysaccharide components, peptidoglycans and muramyl peptide derivatives, Toxins
 •
(neutrophils, monocytes ... pyrogen) TNF, IL-1,