ABG Interpretation Questions and Answers
(100% Correct Answers) Already Graded A+
Purpose of Blood Gas [ Ans: ] 1. To determine acid/base
balance status
2. To determine oxygenation status
Why do we use arterial blood sample rather than venous? [
Ans: ] Arterial blood sample is more stable from any area
of the body:
1. Good indicator of oxygenation
2. Good indicator of oxygenation
of lungs.
Venous blood gives us different values depending on
where it is drawn in the body.
- Venous blood has lower O2 content as it leaves an organ
What is Central Venous Pressure Sampling used for? [ Ans:
] CVP Sampling
-get blood
-get venous sample
-measure pressures in that part of the heart
, What type of catheter is used to collect mixed venous
blood? [ Ans: ] Swan Ganz or CVP catheter
How much of total amount of O2 is dissolved in plasma? [
Ans: ] 1.5 %
How much is O2 is combined? [ Ans: ] 98.5%
What are the hazards of obtaining an ABG? [ Ans: ] 1.
Spasm of the vessel
2. Clotting
3. Bleeding
4. Hematoma
5. Permanent nerve damage
6. All of above can lead to decreased blood flow to tissue
leading to ischemia and necrosis
What are the three sites for taking ABGs? [ Ans: ] 1. Radial
2. Brachial
3. Femoral
Of the three ABG sites, which is the preferred? [ Ans: ]
Radial
Which has higher pressure; artery or vein? [ Ans: ] Artery
(100% Correct Answers) Already Graded A+
Purpose of Blood Gas [ Ans: ] 1. To determine acid/base
balance status
2. To determine oxygenation status
Why do we use arterial blood sample rather than venous? [
Ans: ] Arterial blood sample is more stable from any area
of the body:
1. Good indicator of oxygenation
2. Good indicator of oxygenation
of lungs.
Venous blood gives us different values depending on
where it is drawn in the body.
- Venous blood has lower O2 content as it leaves an organ
What is Central Venous Pressure Sampling used for? [ Ans:
] CVP Sampling
-get blood
-get venous sample
-measure pressures in that part of the heart
, What type of catheter is used to collect mixed venous
blood? [ Ans: ] Swan Ganz or CVP catheter
How much of total amount of O2 is dissolved in plasma? [
Ans: ] 1.5 %
How much is O2 is combined? [ Ans: ] 98.5%
What are the hazards of obtaining an ABG? [ Ans: ] 1.
Spasm of the vessel
2. Clotting
3. Bleeding
4. Hematoma
5. Permanent nerve damage
6. All of above can lead to decreased blood flow to tissue
leading to ischemia and necrosis
What are the three sites for taking ABGs? [ Ans: ] 1. Radial
2. Brachial
3. Femoral
Of the three ABG sites, which is the preferred? [ Ans: ]
Radial
Which has higher pressure; artery or vein? [ Ans: ] Artery
