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WorksheetsClin Lab Exam II - ABG
Total questions: 29
Worksheet time: 19mins
Negative logarithmic scale which measures H+ ion concentration in a solution.
pH
pCO2
HCO3-
H+
Values on the pH scale that are greater than 7 are considered ____, while values that are lower than 7 are considered ____.
acidic, alkaline
alkaline, acidic
acidic, acidic
alkaline, alkaline
In an alkaline solution H+ concentration is lower than in an acidic solution.
True
False
Gastric acid of the stomach is neutralized by bicarbonate which is secreted from which of the following?
Liver
Kidneys
Small intestine
Bone
Patients with severe vomiting may present in which of the following states?
Metabolic Acidosis
Metabolic Alkalosis
Respiratory Acidosis
Respiratory Alkalosis
Patients with severe diarrhea may present in which of the following states?
Metabolic Acidosis
Metabolic Alkalosis
Respiratory Acidosis
Respiratory Alkalosis
The body is constantly producing acids as a result of protein, carbohydrate, and fat metabolism.
True
False
Acid base balance in the body is maintained by alterations of which of the following ions?
H+
HCO3-
CO2
H2O
Volatile acids are contained in the lungs and excreted from the body as which of the following
H+
HCO3-
CO2
H2O
Non-volatile acids contained in the kidney and reabsorbed in the proximal convoluted tubule
H2O2
HCO3-
CO2
H2O
Metabolic strong acids that result from incomplete metabolism include which of the following?
Sulfuric Acid (H2SO4)
Phosphoric Acid (H3PO4)
Lactic Acid (C3H4O3)
Beta Hydroxybutyric acid (C4H8O3)
Bicarbonate (HCO3)
The kidneys are able to modulate pH levels in the blood more quickly than the lungs.
True
False
The enzyme contained in RBCs which allows for disassociation of carbonic acid to CO2 and H2O is?
carbonic anhydrase
glutathione reductase
glucose-6-phosphate dehydrogenase
methemoglobin reductase
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+
The compensatory organ in the case of metabolic acidosis is?
Lungs
Kidneys
The compensatory organ in the case of respiratory acidosis is?
Lungs
Kidneys
The first value to consider during evaluation of an ABG is?
pH
PaCO2
HCO3-
PaO2
Causes of respiratory acidosis include all of the following except?
Sleep apnea
Airway obstruction
COPD
Pulmonary edema
Hyperventilation
An acid/base disorder is considered fully compensated when which of the following values falls within normal limits?
pH
PaCO2
HCO3-
PaO2
Calculation of an anion gap is useful in evaluation of which of the following acid/base disorders?
Metabolic Acidosis
Metabolic Alkalosis
Respiratory Acidosis
Respiratory Alkalosis
A large anion gap >16 mEq/L is suggestive of what acid/base disorder? Normal 3-16 mEq/L
DKA
COPD exacerbation
Severe Diarrhea
Fever
Patients on all of the following medications have a risk of developing high anion gap acidosis except? Remember: CAT MUDPILES
Aminoglycosides
Paracetamol/Acetaminophen
Isoniazid
Salicylates/ASA
Sodium bicarbonate
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)
Partially compensated metabolic acidosis
Partially compensated metabolic alkalosis
Partially compensated respiratory acidosis
Partially compensated respiratory alkalosis
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)
Uncompensated Metabolic acidosis
Uncompensated Metabolic alkalosis
Uncompensated Respiratory alkalosis
Uncompensated Respiratory acidosis
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)
Combined Acidosis
Combined Alkalosis
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)
Fully compensated metabolic acidosis
Fully compensated metabolic alkalosis
Fully compensated respiratory acidosis
Fully compensated respiratory alkalosis
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)
Partially compensated metabolic acidosis
Partially compensated metabolic alkalosis
Partially compensated respiratory acidosis
Partially compensated respiratory alkalosis
Calculate the anion gap based off the following values.
Na+ 140 mEq/L
Cl- 99 mEq/L
HCO3- 29 mEq/L
8
10
12
16
18
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)
Partially compensated metabolic acidosis
Partially compensated metabolic alkalosis
Partially compensated respiratory acidosis
Partially compensated respiratory alkalosis
Normal ABG
