67 results
Acid-Base Disorders - Differential Diagnosis Algorithm
Acidemia (pH < 7.35)
 • Metabolic Acidosis (HCO3 < 24mmol/L) CO2
HCO3 12:10 • Respiratory ... Acidosis (pCO2 ... HCO3 7:10 • Respiratory ... Alkalosis (pCO2 ... Diagnosis #Algorithm #Causes
Hypoxemic Respiratory Failure - Differential Diagnosis Framework
DECREASED INSPIRED OXYGEN
 • Low PATM Can decrease first part
Hypoxemic Respiratory ... HYPOVENTILATION • Rising PaCO2 ... : Decreased respiratory ... of hypoxemic respiratory ... oxygen #Hypoxemic #Respiratory
Approach to the A-a Gradient
A-a gradient = PAO2 - PaO2
A-a gradient = [FiO2 x (Patm -
A-a gradient = PAO2 ... - PaO2 A-a gradient ... (Patm - 47) - (PaCO2 ... Hypoventilation: CNS of Respiratory ... Disease and more • Diffusion
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
DP-PCWP Coronary Perfusion ... min 400-600 mL Respiratory ... -PECO2))/PaCO2 ... = >60% Forced Espiratory ... ratio Respiratory
Acid Base Disorders - Blood Gas Interpretation

Steps for Blood Gas Interpretation: 
1. Acidemia or Alkalemia? 
2.
Respiratory or Metabolic ... 7.35-7.45 • PaCO2 ... 35-45 mmHg • PaO2 ... Metabolic: pH pCO2 ... - Rapid saline infusion
Berlin Criteria for Acute Respiratory Distress Syndrome (ARDS) 
- Respiratory symptoms must have begun within one
Criteria for Acute Respiratory ... Syndrome (ARDS) - Respiratory ... explained by pleural effusions ... - 200 mm Hg < PaO2 ... #ARDS #Acute #Respiratory
Tachypnea - Differential Diagnosis Framework

Definitions
 • Tachypnea: Respiratory rate > 20/min, shallow breathing in adults
 •
• Tachypnea: Respiratory ... • Hyperpnea: Respiratory ... PVFM) Cardiac Causes ... • Pericardial effusion ... Hematologic Causes
#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
)+9 Respiratory ... for each 10 T in pCO2 ... for each 10 1 in pCO2 ... Respiratory Alkalosis ... pk + log (HCO3/(PCO2
Main Lung Ultrasound differences between COVID-19 involvement and other conditions that may yield respiratory symptoms
 •
that may yield respiratory ... Consolidations, Pleural effusion ... Large pleural effusion ... localized pleural effusion ... areas #COVID19 #POCUS
Pulmonary Pathology and Associated Lung Ultrasound Findings
Pneumothorax:
 - No lung sliding/barcode sign
 - Lung point (hard
pleura in severe cases ... Possible bilateral effusion ... severity Acute Respiratory ... submassive PE) POCUS ... #signs #Lung #POCUS