860 results
Causes of Polycythemia (Erythrocytosis) - Differential Diagnosis Algorithm
Relative - Normal RBC Mass / Decreased Plasma Volume
Causes of Polycythemia ... Differential Diagnosis Algorithm ... Cyanosis without Pulmonary ... Apnea • Chronic Pulmonary ... #Causes #Hematology
Shock - Pathophysiology 
Inadequate tissue perfusion to meet O2, nutrient requirements
1. Distributive Shock
2. Hypovolemic Shock
3. Cardiogenic
perfusion to meet O2 ... differential #diagnosis #algorithm ... #causes
Causes of Generalized Hypoxia - Differential Diagnosis
 • Hypoxemic - Not enough O2 (Most Common)
 •
Causes of Generalized ... Hypoxemic - Not enough O2 ... Cells can't use O2 ... Differential #Diagnosis #causes
Hypoxemia vs Hypoxia
Hypoxemia - Partial pressure of arterial oxygen (PaO2) is below normal
Hypoxia - Insufficient oxygen
hypoxia - Increased O2 ... unable to use O2 ... O2 delivery to tissues ... diagnosis #comparison #pulmonary
Factors that May Affect Fetal Oxygenation - Differential Diagnosis Algorithm

Excessive Uterine Activity:
 • Hyperstimulation
 • Placental
Differential Diagnosis Algorithm ... Decreased Fetal O2 ... Maternal Arterial O2 ... Differential #Diagnosis #Algorithm ... #Causes #Obstetrics
Oxygen-Hemoglobin Dissociation Curve

Left Shift (↓ O2 unloading to tissue), Left = Lower:
 • ↓ H+ (↑
Left Shift (↓ O2 ... Right Shift (↑O2 ... pathophysiology #pulmonary
Medications for High-Altitude Sickness 
Acetazolarnide 
 • Carbonic Anydrase Inhibitor Bicarb diuresis & metabolic Acidosis ->
Anti-emetic O2 ... • Decreases pulmonary ... pressure Hyperbaric O2
Pulmonary and Non-Pulmonary Causes of ARDS #Diagnosis #EM #PCC #ARDS #Differential #Algorithm #Pulmonary #NonPulmonary #Causes #Ddxof
Pulmonary and Non-Pulmonary ... Causes of ARDS ... #Differential #Algorithm ... #Pulmonary #NonPulmonary ... #Causes #Ddxof
Low O2 saturation that does not respond to supplemental O2
- Key diagnostic feature (sat < 85%
Low O2 saturation ... to supplemental O2 ... pulse oximeter causes ... a falsely low O2 ... true decrease in O2
Hypoxia and Hypoxemia - Overview
Hypoxia - insufficient oxygen delivered to tissues to meet demands
Hypoxemia - low
oxygen (how much O2 ... oxygen (how much O2 ... - Insufficient O2 ... Hypoxemia #summary #pulmonary ... differential #diagnosis #causes