22 results
Approach to the A-a Gradient
A-a gradient = PAO2 - PaO2
A-a gradient = [FiO2 x (Patm -
A-a gradient = [FiO2 ... Hypoventilation Syndrome ... Hepatopulmonary Syndrome ... arterial #pulmonary #Hypoxia ... #hypoxemia #differential
Intrapartum Abnormal Fetal HR Tracing - Causes of Variability & Decelerations - Differential Diagnosis Algorithm
Minimal/Absent Variability
Differential Diagnosis Algorithm ... sedatives) • Hypoxic ... bpm): • Mild hypoxia ... Differential #Diagnosis #Algorithm ... Causes #Obstetrics #OBGyn
Causes of Hypoxemia- Differential Diagnosis Algorithm
Ventilation/perfusion Mismatch
 • Airway Disease (Asthma, COPD)
 • Vascular (PE*)
 •
Causes of Hypoxemia ... Differential Diagnosis Algorithm ... Hypoventilation Syndrome ... #Hypoxia #Differential ... #Diagnosis #Algorithm
Causes of Growth Discrepancy: Large for Gestational Age - Differential Diagnosis Algorithm
Maternal Factors:
 • Multiparity
 •
Differential Diagnosis Algorithm ... Sotos syndrome, ... palsy secondary to hypoxia ... Differential #Diagnosis #Algorithm ... Causes #Obstetrics #OBGyn
Berlin Criteria for Acute Respiratory Distress Syndrome (ARDS) 
- Respiratory symptoms must have begun within one
Respiratory Distress Syndrome ... severity of the hypoxemia ... mm Hg < PaO2 / FiO2 ... mm Hg < PaO2 / FiO2 ... Respiratory #Distress #Syndrome
General schema for respiratory support in patients with COVID-19
Low flow nasal cannula
 • Typically set at
in more severe hypoxemia ... for refractory hypoxemia ... patients with PaO2/FiO2 ... #criticalcare #hypoxia ... #failure #algorithm
Factors that May Affect Fetal Oxygenation - Differential Diagnosis Algorithm

Excessive Uterine Activity:
 • Hyperstimulation
 • Placental
Differential Diagnosis Algorithm ... Antiphospholipid syndrome ... #Oxygenation #Hypoxia ... Differential #Diagnosis #Algorithm ... Causes #Obstetrics #OBGyn
Causes of Recurrent Pregnancy Loss - Differential Diagnosis Algorithm
Environmental:
 • Toxin (organic solvents, mercury, lead)
 •
Differential Diagnosis Algorithm ... Antiphospholipid syndrome ... • Asherman's Syndrome ... Differential #Diagnosis #Algorithm ... Causes #Obstetrics #OBGyn
Causes of Vaginal Discharge - Differential Diagnosis Algorithm
Neoplastic:
 • Endometrium
 • Cervix
 • Vulva
 • Vagina
Systemic
Differential Diagnosis Algorithm ... vaginalis Toxic Shock Syndrome ... Differential #Diagnosis #Algorithm ... Causes #Gynecology #OBGyn
Mechanical ventilation in obese patients according to the i-STAR Algorithm
Intubate
 • Anticipate difficult airway management and
to the i-STAR Algorithm ... recruitment • FiO2 ... : avoid hyperoxia ... desaturation prioritise FiO2 ... patients #iSTAR #Algorithm