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Jazlyn Cardoza
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Undergraduate Patient Eval Quiz on Interpreting Blood Gases - Part 1, created by Jazlyn Cardoza on 02/11/2022.

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Jazlyn Cardoza
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Interpreting Blood Gases - Part 1

Question 1 of 16 Question 1 of 16

1

The Modified Allen's Test determines the clotting ability of blood.

Select one of the following:

  • True
  • False

Explanation

Question 2 of 16 Question 2 of 16

1

An arterial blood sample can be taken from these sites:

I. Radial
II. Femoral
III. Brachial
IV. Dorsalis Pedis

Select one of the following:

  • I

  • II and III

  • I, II, III, IV

  • I and III

Explanation

Question 3 of 16 Question 3 of 16

1

Which of the following is true of the Modied Allen's Test?

Select one of the following:

  • The hand has collateral blood flow when the hand flushes within 10-15 seconds.

  • Only the radial artery is tested.

  • Both A and B

  • if the test is negative, evaluate the other hand or brachial site.

Explanation

Question 4 of 16 Question 4 of 16

1

Which of the following is true following the actual blood sample collection process?

Select one of the following:

  • All of the above.

  • Air bubbles in the sample have no effect on the results.

  • The sample should be stored in an ice bath and sent to the lab within 30 minutes.

  • Apply pressure on the collection site for a shorter time if the patient is on heparin.

Explanation

Question 5 of 16 Question 5 of 16

1

What factors determine the acid-base balance of a blood gas interpretation?

Select one of the following:

  • pH, PaCO2, PvO2, and HCO3

  • pH, BE, PaO2, and CaO2

  • PaO2, PaCO2, CaO2, and PvO2

  • pH, PaCO2, HCO3, and BE

Explanation

Question 6 of 16 Question 6 of 16

1

Oxygen is mainly dissolved in the blood while a smaller portion is transported bound to Hgb.

Select one of the following:

  • True
  • False

Explanation

Question 7 of 16 Question 7 of 16

1

What is the normal range for PaO2 in arterial blood?

Select one of the following:

  • 80-180 mmHg

  • 65-85 mmHg

  • 60-90 mmHg

  • 80-100 mmHg

Explanation

Question 8 of 16 Question 8 of 16

1

What factors determine PaO2?

Select one of the following:

  • PB (760 mmHg)

  • all of the above

  • FiO2

  • PAO2

  • age

Explanation

Question 9 of 16 Question 9 of 16

1

What happens to your PaO2 as you age over 60 years?

Select one of the following:

  • every year over 60 = drop of 1 mmHg

  • every year after 60 = drop of .5 mmHg

  • every year after 60 = gain of 1 mmHg

  • PaO2 won't change when you age over 60 years.

Explanation

Question 10 of 16 Question 10 of 16

1

The following PaO2 classification of hypoxemia is correct:

60-79 mmHg: mild
40-59 mmHg: moderate
<40 mmHg: severe

Select one of the following:

  • True
  • False

Explanation

Question 11 of 16 Question 11 of 16

1

What is the most common cause of hypoxemia in cases of respiratory disease?

Select one of the following:

  • low pH

  • collapsed lung

  • gas dissolving in blood

  • V/Q mismatching

Explanation

Question 12 of 16 Question 12 of 16

1

The normal value of oxygen saturation is 97% instead of 100% since the normal anatomic shunt is 3%.

Select one of the following:

  • True
  • False

Explanation

Question 13 of 16 Question 13 of 16

1

The normal value of oxygen saturation is 97% instead of 100% because the normal anatomic shunt is 3%

Select one of the following:

  • True
  • False

Explanation

Question 14 of 16 Question 14 of 16

1

True SaO2 can be determined only from a co-oximeter.

Select one of the following:

  • True
  • False

Explanation

Question 15 of 16 Question 15 of 16

1

Identify the correct statements about 2,3 DPG.

I. found in leukocytes
II. Aids in reducing affinity of oxygen & releases it to the cells
III. Increases levels found in patients with anemia.
IV. Decreased levels found in fetal blood.

Select one of the following:

  • II, III, IV

  • II and III

  • I

  • I, II, IV

Explanation

Question 16 of 16 Question 16 of 16

1

Describe how changes in PaO2 affect5 SaO2.

Select one or more of the following:

  • PaO2 changes over 80 mmHg = significant changes in SaO2

  • PaO2 changes below 80 mmHg = significant changes in SaO2.

  • PaO2 changes over 80 mmHg = minimal changes in SaO2

  • PaO2 changes below 80 mmHg = minimal changes in SaO2.

Explanation

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