294 results
Gastric Acid Secretion - Pathophysiology
Chief cell - Pepsinogen
Parietal cell - Acid, Intrinsic factor
G cell - Gastrin
Inhibitors:
Gastric Acid Secretion ... factor G cell - Gastrin ... Gastric - Distension ... secretory cells and gastrin ... hormone release #Gastric
Primary Metabolic Alkalosis - Differential Diagnosis Algorithm
Volume Depleted 2° hyperaldosteronism
 • Low Urine Cl-: Vomiting, NGT
Primary Metabolic Alkalosis ... Cl-: Vomiting, NGT ... Primary #Metabolic #Alkalosis
Causes of Metabolic Alkalosis - Differential Diagnosis Algorithm
GI Losses - Gastric
 • Vomiting
 • NG suction
GI
Causes of Metabolic Alkalosis ... Algorithm GI Losses - Gastric ... • Vomiting • NG
Primary Metabolic Alkalosis - Differential Diagnosis Algorithm
Volume Depleted - 2° hyperaldosteronism
 • Low Urine Cl-: Vomiting,
Primary Metabolic Alkalosis ... Cl-: Vomiting, NGT ... aldosteronism #Metabolic #Alkalosis
Causes of Metabolic Alkalosis - Differential Diagnosis Algorithm
Urine chloride < 20 mmol/l - Chloride responsive (Chloride
Causes of Metabolic Alkalosis ... • Vomiting • NG ... #Metabolic #Alkalosis
Blood Gas Analysis and Interpretation
STEPS TO ANALYSIS
1. Look at PH. Alkalotic or acidotic?
Alkalotic or acidotic ... - If alkalotic, ... then it is an alkalosis ... respiratory component) - alkalotic ... metabolic component) - alkalotic
Arterial Blood Gas (ABG) Analysis - Metabolic + Respiratory Acidosis + Alkalosis

pH ↓ pCO2 ↓ -
Respiratory Acidosis + Alkalosis ... ↑ - Metabolic alkalosis ... - Respiratory alkalosis ... Compensation #acidosis #alkalosis
Approach to Elevated Bicarbonate (HCO3)
Risk Factors for Hypercapnea? (Hx of COPD, OSA, sedative use, CNS/muscular disorders?)
(+)
Likely Metabolic Alkalosis ... loss (Vomiting/NG ... Elevated #metabolic #alkalosis
Acid-Base Disorders - Differential Diagnosis Framework

 • Respiratory Acidosis
 • Respiratory Alkalosis
 • Metabolic Acidosis
 •
• Respiratory Alkalosis ... • Metabolic Alkalosis ... diagnosis #acidosis #alkalosis
Arterial Blood Gas (ABG) Interpretation
 • AG/non-AG Metabolic Acidosis
 • AG Acidosis "Delta/Delta"
 • Metabolic Alkalosis
• Metabolic Alkalosis ... • Respiratory Alkalosis ... acidbase #acidosis #alkalosis