Gastric Secretion – Laboratory Test Ranges | Reference

Gastric Secretion – Laboratory Test Ranges | Reference

Lab Value

Gastric juice

Volume
  • 2-3 liters
  • per 24 hours
Specific gravity 1005
Reaction рН 1,6-1,8

On an empty stomach gastric contents

Volume 5-40 ml
Total acidity < 20-30 mmol/L
Free hydrochloric acid up to 15 mmol/L
Pepsin 0-21 mg%

Investigation of basal secretion

  • Total volume
  • collected in four portions
  • within 60 minutes
  • after evacuating portions on an empty stomach
50-100 ml
Total acidity 40-60 mmol/L
Free hydrochloric acid 20-40 mmol/L
Linked hydrochloric acid 10-15 mmol/L
Total hydrochloric acid discharge 1,5-5,5 mmol/h
Free hydrochloric acid discharge 1,0-4,0 mmol/h
Pepsin discharge 4-40 mg