51 results
Approach to the A-a Gradient
A-a gradient = PAO2 - PaO2
A-a gradient = [FiO2 x (Patm -
Intracardiac, Pulmonary ... V/Q Mismatch: Pulmonary ... , Atelectasis, Pulmonary ... Disease and more • Diffusion ... Defect: Pulmonary
Oxygen-Hemoglobin Dissociation Curve

Left Shift (↓ O2 unloading to tissue), Left = Lower:
 • ↓ H+ (↑
+ (↑ pH) • ↓ PCO2 ... tissue): • ↑ H+ (Acid ... ) • ↑ PCO2 • ... pathophysiology #pulmonary
Perform computations online at:
ScyMed.com
6th ED
ICU-card
«ICU, Formulas & Drugs»
HEMODYNAMIC PATTERNS
Condition
SAP
CVP

PAP PCWP

CO C(a-v)02 PVR

SVR
Hypovolemic shock
↓
↓
↓
↓
↓
↑
↑
↑
Cardiogenic shock
↓
1
↑
1

1
↑

Septic shock
↓
↓
↓
↓
↑
↓
↓
↓
Cardiac Tamponade
.
↑
↑
1
↓

→
↑
RV
→ ↓ → →↑ Pulmonary ... +2PDP)/3 Mean Pulmonary ... DP-PCWP Coronary Perfusion ... MPAP-WP)*79.92)/CO Pulmonary ... = 1.36 cmH20 PULMONARY
Hydropneumothorax on Lung POCUS

HIV/AID(CD4<250) with cough, dyspnea.Left lung anterior mid. Left lung. Findings consistent with PNA.
Hydropneumothorax on Lung POCUS ... HIV/AID(CD4< ... Has pleural effusion ... #bubbles #POCUS ... clinical #ultrasound #pulmonary
Shark Tail Appearance of Consolidated Lung on Pleural Effusion on POCUS

Dr. David Feller-Kopman @dfellerk

#Pleural #Effusion #pulmonary
Lung on Pleural Effusion ... on POCUS Dr. ... dfellerk #Pleural #Effusion ... #pulmonary #Lung ... #POCUS #clinical
#ICUCard
RENAL
GFR
90-131
mL/min
((140-age)*Wt)/(72*Cr)
Glomerular Filtration Rate (Cockcroft)
CI Cr
90-131
mL/min
(CrU * volume)/CrS
Creatinine Clearance
FENa
0.0-1.0
%
((U/P Na)/(U/P Cr))*100
Fractional Excretion of Na+
Na req
mEq
(125-Na)*0.6*Wt
Required Sodium
FE Urea
Osmolar Gap ACID-BASE ... H_def 0 mEq Acid ... for each 10 - in pCO2 ... pk + log (HCO3/(PCO2 ... )/HCO3 Acid base
Hypoxemic Respiratory Failure - Differential Diagnosis Framework
DECREASED INSPIRED OXYGEN
 • Low PATM Can decrease first part
HYPOVENTILATION • Rising PaCO2 ... lung diseases, pulmonary ... asthma, COPD, pulmonary ... shunting (eg, pulmonary ... Differential #Diagnosis #pulmonary
Acid Base Disorders - Blood Gas Interpretation

Steps for Blood Gas Interpretation: 
1. Acidemia or Alkalemia? 
2.
Acid Base Disorders ... Metabolic: pH pCO2 ... - Rapid saline infusion ... Classically” noted with pulmonary ... ABG #bloodgas #Acid
Right pleural effusion with "spine sign" seen beautifully by using large footprint curvilinear transducer on lung
Right pleural effusion ... Care Ultrasound (POCUS ... Sign #Clinical #POCUS ... Lung #Pleural #Effusion ... #ultrasound #pulmonary
Spine sign: visualization of the vertebral bodies in the thoracic cavity above the diaphragm indicative of
indicative of pleural effusion ... absence of pleural effusion ... #SpineSign #POCUS ... Clinical #Pleural #Effusion ... #Pulmonary #Lung