MED SURG EXAM -2 Chapter 10 - ABG Test , Metabolic Acidosis Alkalosis, Respiratory Acidosis Alkalosis Questions and Answers.docx

MED SURG EXAM #2: Chapter 10 - ABG
Test , Metabolic Acidosis/Alkalosis,
Respiratory Acidosis/Alkalosis Questions and
Answers
What is an ABG? -
correct answer ✅Arterial blood gas measurement to determine
the concentration of:
-Acidity (ph) 7.35 to 7.45
-Carbon Dioxide (PCO2) 35-45 mmHg
-Oxygen (PaO2) 80-100 mmHg
-Bicarbonate (HCO3-) (22-26 mEq/liter)
-SaO2 (saturation) 95%-100%


What is an acidic pH? -
correct answer ✅<7.35


What is an alkalotic pH? -
correct answer ✅>7.45


What is the normal pH? -
correct answer ✅7.4

, MED SURG EXAM #2: Chapter 10 - ABG
Test , Metabolic Acidosis/Alkalosis,
Respiratory Acidosis/Alkalosis Questions and
Answers
What is the respiratory buffer response? -
correct answer ✅-CO2 which is a normal byproduct of cellular
metabolism carried in blood to the lungs
-excess carbon dioxide combines with water to form carbonic acid
(H2CO3 is an acid)
-Blood pH wil change according to the level of carbonic acid prsent
-this triggers the lungs to increase or decrease the rate and depth
of ventilation to either retain or blow off carbon dioxide


What is the renal buffer response? -
correct answer ✅-kidneys excrete or retain bicarbonate (HCO3) in
aan effort to maintain normal ph of the blood.
-as blood pH decreases the kidney retain HCO3 (a base)
-as blood pH increases the kidneys excrete HCO3) through the urine
*may take hours or days to correct the imbalance this way


What is Respiratory Acidosis? -
correct answer ✅-pH <7.35
-pCO2 >45 mmHg