2197 results
V/Q Mismatch Physiology

by Dr. Lizzy Hastie @LizzyHastie

#VQMismatch #pathophysiology #diagnosis #pulmonary
V/Q Mismatch Physiology ... LizzyHastie #VQMismatch
Hypoxemia Differential Diagnosis Algorithm by A-a Gradient

Normal A-a Gradient:
 • ↓ Atmospheric pressure
 • Hypoventilation: CNS
Hypoxemia Differential ... Alveolar • V/Q Mismatch ... Hypoxemia #Hypoxia #Differential
Causes of Hypoxemia- Differential Diagnosis Algorithm
Ventilation/perfusion Mismatch
 • Airway Disease (Asthma, COPD)
 • Vascular (PE*)
 •
of Hypoxemia- Differential ... Ventilation/perfusion Mismatch ... Hypoxemia #Hypoxia #Differential
Hypoxemic Respiratory Failure - Differential Diagnosis Framework
DECREASED INSPIRED OXYGEN
 • Low PATM Can decrease first part
Respiratory Failure - Differential ... common than VIQ mismatch ... PERFUSION (V/Q) MISMATCH ... Failure #hypoxia #Differential
Lynch Syndrome:
 • "CRC + Endometrial/Ovarian + Stomach + Urinary → Lynch Syndrome"
 • Autosomal Dominant,
EPCAM genes → Mismatch
Multiple masses
The differential diagnostic list of multiple masses is very long.
The most important diagnoses are listed
Multiple masses The differential ... is difficult to differentiate ... Multiple #Massess #Differential
Generalized Hyperpigmentation Differentials
Use the Mnemonic "no skin SPARED"

Images from dermnet.nz and merckmanuals

Mnemonic from https://www.medscape.com/slideshow/dermatology-mnemonics-6011359#5 #diagnosis #differential
Hyperpigmentation Differentials ... #5 #diagnosis #differential
Abdominal Pain - Differential Diagnosis According to Localization of Abdominal Pain 

Abdominal pain can originate from
Abdominal Pain - Differential ... narrow down your differential ... abdominal pain, the differential ... conditions in his differential ... #Diagnosis #Differential
Ever had a #traveler come in to your clinic with #fever and you were not sure
to narrow your differential ... to narrow your differentials ... #differentials #
Approach to the A-a Gradient
A-a gradient = PAO2 - PaO2
A-a gradient = [FiO2 x (Patm -
and more • V/Q Mismatch ... Hypoxia #hypoxemia #differential