Q2 RC 110 evolve practice

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25 Terms

1
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What is the PEFR in the normal healthy woman 20 to 30 years of age?

a. 250 L/min

b. 350 L/min

c. 450 L/min

d. 550 L/min

C. 450 L/min

2
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What is the PEFR in the normal healthy woman 20 to 30 years of age?

a. 250 L/min

b. 350 L/min

c. 450 L/min

d. 550 L/min

c. 450 L/min

3
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A restrictive lung disorder is confirmed when the:

1. FEV1 is decreased

2. FVC is increased

3. FEV1/FVC ratio is normal or increased

4. FEV1 is increased

---------------------------------------------

a. 1 only

b. 4 only

c. 1 and 3 only

d. 2 and 4 only

c. 1 and 3 only

4
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Which of the following expiratory maneuver findings are characteristic of restrictive lung disease?

1. Normal FVC

2. Decreased FEF25%–75%

3. Increased PEFR

4. Decreased FEVT

--------------------------------

a. 1 and 3 only

b. 2 and 4 only

c. 3 and 4 only

d. 2 and 3 only

b. 2 and 4 only

5
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In an obstructive lung disorder, which of the following occurs?

1. FRC is decreased

2. RV is increased

3. VC is decreased

4. IRV is increased

-------------------------

a. 1 and 3 only

b. 2 and 3 only

c. 2 and 4 only

d. 2, 3, and 4 only

b. 2 and 3 only

6
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Under normal conditions, the average DLCO value for the resting man is which of the following?

a. 10 mL/min/mm Hg

b. 15 mL/min/mm Hg

c. 20 mL/min/mm Hg

d. 25 mL/min/mm Hg

d. 25 mL/min/mm Hg

7
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What is the vital capacity of the normal recumbent man 20 to 30 years of age?

a. 2700 mL

b. 3200 mL

c. 4000 mL

d. 4800 mL

d. 4800 mL

8
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What is the normal percentage of the total volume exhaled during an FEV1?

a. 60%

b. 83%

c. 94%

d. 97%

b. 83%

9
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Which of the following can be obtained from a flow-volume loop study?

1. FVC

2. PEFR

3. FEVT

4. FEF25%–75%

---------------------

a. 4 only

b. 1 and 2 only

c. 1, 3, and 4 only

d. 1, 2, 3, and 4

d. 1, 2, 3, and 4

10
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An obstructive lung disorder is confirmed when the:

1. FEV1 is decreased

2. FVC is increased

3. FEV1 is increased

4. FEV1/FVC ratio is decreased

--------------------------------------

a. 3 only

b. 4 only

c. 1 and 3 only

d. 1 and 4 only

d. 1 and 4 only

11
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Which of the following anatomic alterations of the lungs is or are associated with a restrictive lung disorder?

1. Bronchospasm

2. Atelectasis

3. Distal airway weakening

4. Consolidation

-------------------------------

a. 1 only

b. 3 only

c. 2 and 4 only

d. 1 and 3 only

c. 2 and 4 only

12
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During acute alveolar hyperventilation, which of the following occurs?

1. HCO3– decreases.

2. PaCO2 increases.

3. HCO3– increases.

4. PaCO2 decreases.

------------------------------

a. 2 only

b. 3 only

c. 1 and 4 only

d. 2, 3, and 4 only

c. 1 and 4 only

13
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When lactic acidosis is present, which of the following will occur?

1. pH will likely be lower than expected for a particular PaCO2.

2. HCO3– will likely be higher than expected for a particular PaCO2.

3. pH will likely be higher than expected for a particular PaCO2.

4. HCO3– will likely be lower than expected for a particular PaCO2.

-------------------------------------------------------------------------------

a. 2 only

b. 3 only

c. 2 and 3 only

d. 1 and 4 only

d. 1 and 4 only

14
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What is the clinical interpretation of the following ABG values (in addition to hypoxemia)?

pH: 7.17

PaCO2: 77 mm Hg

HCO3–: 27 mEq/L

PaO2: 54 mm Hg

-----------------------

a. Acute alveolar hyperventilation superimposed on chronic ventilatory failure

b. Acute ventilatory failure

c. Acute alveolar hyperventilation

d. Acute ventilatory failure superimposed on chronic ventilatory failure

b. Acute ventilatory failure

15
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A 74-year-old man with a long history of emphysema and chronic bronchitis enters the emergency department in respiratory distress. His respiratory rate is 34 breaths per minute and labored. His heart rate is 115 beats per minute, and his blood pressure is 170/120. What is the clinical interpretation of the following ABG values (in addition to hypoxemia)?

pH: 7.51

PaCO2: 68 mm Hg

HCO3–: 52 mEq/L

PaO2: 49 mm Hg

---------------------------

a. Acute alveolar hyperventilation superimposed on chronic ventilatory failure

b. Acute ventilatory failure

c. Acute alveolar hyperventilation

d. Acute ventilatory failure superimposed on chronic ventilatory failure

a. Acute alveolar hyperventilation superimposed on chronic ventilatory failure

16
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Which of the following is classified as metabolic acidosis?

a. pH 7.23; PaCO2 63; HCO3– 26; PaO2 52

b. pH 7.16; PaCO2 38; HCO3– 13; PaO2 86

c. pH 7.56; PaCO2 27; HCO3– 23; PaO2 101

d. pH 7.64; PaCO2 49; HCO3– 51; PaO2 91

b. pH 7.16; PaCO2 38; HCO3– 13; PaO2 86

17
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Which of the following cause metabolic acidosis?

1. Hypokalemia

2. Renal failure

3. Excessive administration of sodium bicarbonate

4. Hypochloremia

--------------------------------------------------------

a. 1 only

b. 2 only

c. 1 and 4 only

d. 2 and 3 only

b. 2 only

18
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  1. Using the general rule of thumb for the PCO2/HCO3–/pH relationship, if the PaCO2 suddenly increased to 90 mm Hg in a patient who normally has a pH of 7.40, a PaCO2 of 40 mm Hg, and an HCO3– of 24 mEq/L, the pH will decrease to approximately what level?

    a. 7.15

    b. 7.10

    c. 7.05

    d. 7.00

b. 7.10

19
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Which of the following is classified as metabolic alkalosis?

a. pH 7.23; PaCO2 63; HCO3– 26; PaO2 52

b. pH 7.16; PaCO2 38; HCO3– 13; PaO2 86

c. pH 7.56; PaCO2 27; HCO3– 23; PaO2 101

d. pH 7.64; PaCO2 44; HCO3– 46; PaO2 91

d. pH 7.64; PaCO2 44; HCO3– 46; PaO2 91

20
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Lactic acidosis develops from which of the following?

1. Inadequate tissue oxygenation

2. Renal failure

3. An inadequate insulin level

4. Anaerobic metabolism

5. An inadequate glucose level

---------------------------------------

a. 1 only

b. 2 only

c. 1 and 4 only

d. 3 and 5 only

c. 1 and 4 only

21
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Metabolic alkalosis can develop from which of the following?

1. Hyperchloremia

2. Hypokalemia

3. Hypochloremia

4. Hyperkalemia

------------------------

a. 4 only

b. 1 and 3 only

c. 1 and 4 only

d. 2 and 3 only

d. 2 and 3 only

22
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During acute alveolar hypoventilation, the blood:

1. HCO3– increases

2. pH decreases

3. PCO2 increases

4. HCO3– decreases

--------------------------

a. 2 only

b. 4 only

c. 2 and 3 only

d. 1, 2, and 3 only

d. 1, 2, and 3 only

23
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During acute alveolar hyperventilation, the blood:

1. PCO2 increases

2. HCO3– increases

3. HCO3– decreases

4. pH increases

--------------------------------

a. 2 only

b. 4 only

c. 1 and 3 only

d. 3 and 4 only

d. 3 and 4 only

24
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Which of the following represents acute alveolar hyperventilation?

a. pH 7.56; PaCO2 51; HCO3– 44

b. pH 7.45; PaCO2 37; HCO3– 25

c. pH 7.53; PaCO2 46; HCO3– 29

d. pH 7.58; PaCO2 26; HCO3– 21

d. pH 7.58; PaCO2 26; HCO3– 21

25
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Which of the following represents compensated metabolic alkalosis?

a. pH 7.55; PaCO2 21; HCO3– 19

b. pH 7.52; PaCO2 45; HCO3– 29

c. pH 7.45; PaCO2 26; HCO3– 18

d. pH 7.45; PaCO2 61; HCO3– 41

d. pH 7.45; PaCO2 61; HCO3– 41

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