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Clin Lab Exam II - ABG

Total questions: 29

Worksheet time: 19mins

Name
Class
Date
1.

Negative logarithmic scale which measures H+ ion concentration in a solution.

a)

pH

b)

pCO2

c)

HCO3-

d)

H+

2.

Values on the pH scale that are greater than 7 are considered ____, while values that are lower than 7 are considered ____.

a)

acidic, alkaline

b)

alkaline, acidic

c)

acidic, acidic

d)

alkaline, alkaline

3.

In an alkaline solution H+ concentration is lower than in an acidic solution.

a)

True

b)

False

4.

Gastric acid of the stomach is neutralized by bicarbonate which is secreted from which of the following?

a)

Liver

b)

Kidneys

c)

Small intestine

d)

Bone

5.

Patients with severe vomiting may present in which of the following states?

a)

Metabolic Acidosis

b)

Metabolic Alkalosis

c)

Respiratory Acidosis

d)

Respiratory Alkalosis

6.

Patients with severe diarrhea may present in which of the following states?

a)

Metabolic Acidosis

b)

Metabolic Alkalosis

c)

Respiratory Acidosis

d)

Respiratory Alkalosis

7.

The body is constantly producing acids as a result of protein, carbohydrate, and fat metabolism.

a)

True

b)

False

8.

Acid base balance in the body is maintained by alterations of which of the following ions?

a)

H+

b)

HCO3-

c)

CO2

d)

H2O

9.

Volatile acids are contained in the lungs and excreted from the body as which of the following

a)

H+

b)

HCO3-

c)

CO2

d)

H2O

10.

Non-volatile acids contained in the kidney and reabsorbed in the proximal convoluted tubule

a)

H2O2

b)

HCO3-

c)

CO2

d)

H2O

11.

Metabolic strong acids that result from incomplete metabolism include which of the following?

a)

Sulfuric Acid (H2SO4)

b)

Phosphoric Acid (H3PO4)

c)

Lactic Acid (C3H4O3)

d)

Beta Hydroxybutyric acid (C4H8O3)

e)

Bicarbonate (HCO3)

12.

The kidneys are able to modulate pH levels in the blood more quickly than the lungs.

a)

True

b)

False

13.

The enzyme contained in RBCs which allows for disassociation of carbonic acid to CO2 and H2O is?

a)

carbonic anhydrase

b)

glutathione reductase

c)

glucose-6-phosphate dehydrogenase

d)

methemoglobin reductase

14.

CO2 gas in the blood can react with H2O to undergo a reaction forming (a)   as an intermediate which then disassociates into HCO3- and H+

15.

The compensatory organ in the case of metabolic acidosis is?

a)

Lungs

b)

Kidneys

16.

The compensatory organ in the case of respiratory acidosis is?

a)

Lungs

b)

Kidneys

17.

The first value to consider during evaluation of an ABG is?

a)

pH

b)

PaCO2

c)

HCO3-

d)

PaO2

18.

Causes of respiratory acidosis include all of the following except?

a)

Sleep apnea

b)

Airway obstruction

c)

COPD

d)

Pulmonary edema

e)

Hyperventilation

19.

An acid/base disorder is considered fully compensated when which of the following values falls within normal limits?

a)

pH

b)

PaCO2

c)

HCO3-

d)

PaO2

20.

Calculation of an anion gap is useful in evaluation of which of the following acid/base disorders?

a)

Metabolic Acidosis

b)

Metabolic Alkalosis

c)

Respiratory Acidosis

d)

Respiratory Alkalosis

21.

A large anion gap >16 mEq/L is suggestive of what acid/base disorder? Normal 3-16 mEq/L

a)

DKA

b)

COPD exacerbation

c)

Severe Diarrhea

d)

Fever

22.

Patients on all of the following medications have a risk of developing high anion gap acidosis except? Remember: CAT MUDPILES

a)

Aminoglycosides

b)

Paracetamol/Acetaminophen

c)

Isoniazid

d)

Salicylates/ASA

e)

Sodium bicarbonate

23.

Evaluate the following ABG and determine the primary problem and level of compensation.

pH: 7.28 (7.35-7.45)

PaCO2: 18 mmHg (35-45 mmHg)

[HCO3-]: 8 mEq/L (22-26 mEq/L)

a)

Partially compensated metabolic acidosis

b)

Partially compensated metabolic alkalosis

c)

Partially compensated respiratory acidosis

d)

Partially compensated respiratory alkalosis

24.

Evaluate the following ABG and determine the primary problem and level of compensation.

pH: 7.48 (7.35-7.45)

PaCO2: 38 mmHg (35-45 mmHg)

[HCO3-]: 27 mEq/L (22-26 mEq/L)

a)

Uncompensated Metabolic acidosis

b)

Uncompensated Metabolic alkalosis

c)

Uncompensated Respiratory alkalosis

d)

Uncompensated Respiratory acidosis

25.

Evaluate the following ABG and determine the primary problem and level of compensation.

pH: 7.25 (7.35-7.45)

PaCO2: 47 mmHg (35-45 mmHg)

[HCO3-]: 20 mEq/L (22-26 mEq/L)

a)

Combined Acidosis

b)

Combined Alkalosis

26.

Evaluate the following ABG and determine the primary problem and level of compensation.

pH: 7.38 (7.35-7.45)

PaCO2: 17 mmHg (35-45 mmHg)

[HCO3-]: 10 mEq/L (22-26 mEq/L)

a)

Fully compensated metabolic acidosis

b)

Fully compensated metabolic alkalosis

c)

Fully compensated respiratory acidosis

d)

Fully compensated respiratory alkalosis

27.

Evaluate the following ABG and determine the primary problem and level of compensation.

pH: 7.26 (7.35-7.45)

PaCO2: 50 mmHg (35-45 mmHg)

[HCO3-]: 33 mEq/L (22-26 mEq/L)

a)

Partially compensated metabolic acidosis

b)

Partially compensated metabolic alkalosis

c)

Partially compensated respiratory acidosis

d)

Partially compensated respiratory alkalosis

28.

Calculate the anion gap based off the following values.

Na+ 140 mEq/L

Cl- 99 mEq/L

HCO3- 29 mEq/L

a)

8

b)

10

c)

12

d)

16

e)

18

29.

Evaluate the following ABG and determine the primary problem and level of compensation.

pH: 7.39 (7.35-7.45)

PaCO2: 44 mmHg (35-45 mmHg)

[HCO3-]: 26 mEq/L (22-26 mEq/L)

a)

Partially compensated metabolic acidosis

b)

Partially compensated metabolic alkalosis

c)

Partially compensated respiratory acidosis

d)

Partially compensated respiratory alkalosis

e)

Normal ABG