#1
Which parameter is measured to assess the acidity or alkalinity of blood in arterial blood gas analysis?
pH
ExplanationpH is the measure of acidity or alkalinity in arterial blood gas analysis.
#2
What does the PaO2 value represent in arterial blood gas analysis?
Partial pressure of oxygen in the blood
ExplanationPaO2 represents the partial pressure of oxygen in the blood in arterial blood gas analysis.
#3
What is the normal range for arterial blood pH in humans?
7.35 - 7.45
ExplanationThe normal range for arterial blood pH in humans is 7.35 - 7.45.
#4
What is the normal range for PaCO2 in arterial blood gas analysis?
35 - 45 mmHg
ExplanationThe normal range for PaCO2 in arterial blood gas analysis is 35 - 45 mmHg.
#5
In respiratory acidosis, what parameter is typically elevated?
PaCO2
ExplanationIn respiratory acidosis, PaCO2 is typically elevated.
#6
Which condition is associated with a decreased bicarbonate (HCO3-) level in arterial blood gas analysis?
Metabolic acidosis
ExplanationMetabolic acidosis is associated with a decreased bicarbonate (HCO3-) level.
#7
What is the primary function of the respiratory system in maintaining acid-base balance?
Elimination of carbon dioxide
ExplanationThe primary function of the respiratory system in maintaining acid-base balance is the elimination of carbon dioxide.
#8
What is the primary cause of respiratory alkalosis?
Hyperventilation
ExplanationThe primary cause of respiratory alkalosis is hyperventilation.
#9
In arterial blood gas analysis, what does a decreased oxygen saturation level indicate?
Hypoxemia
ExplanationA decreased oxygen saturation level in arterial blood gas analysis indicates hypoxemia.
#10
In which acid-base disorder does the body attempt to compensate by retaining bicarbonate in the kidneys?
Metabolic acidosis
ExplanationIn metabolic acidosis, the body attempts to compensate by retaining bicarbonate in the kidneys.
#11
What is the primary cause of metabolic alkalosis?
Excessive bicarbonate intake
ExplanationThe primary cause of metabolic alkalosis is excessive bicarbonate intake.
#12
What does the base excess value indicate in arterial blood gas analysis?
Excess hydrogen ions in the blood
ExplanationThe base excess value indicates excess hydrogen ions in the blood in arterial blood gas analysis.
#13
In a compensated respiratory acidosis, which parameter returns to normal range?
pH
ExplanationIn compensated respiratory acidosis, pH returns to normal range.
#14
Which acid-base disorder is associated with an increased anion gap?
Metabolic acidosis
ExplanationMetabolic acidosis is associated with an increased anion gap.
#15
What is the primary buffer system that helps regulate pH in the blood?
Bicarbonate buffer system
ExplanationThe primary buffer system that helps regulate pH in the blood is the bicarbonate buffer system.
#16
In which condition would you expect a decreased PaO2 and an increased PaCO2 in arterial blood gas analysis?
Respiratory acidosis
ExplanationIn respiratory acidosis, you would expect a decreased PaO2 and an increased PaCO2 in arterial blood gas analysis.
#17
What is the primary mechanism of compensation for respiratory alkalosis?
Increased excretion of bicarbonate by the kidneys
ExplanationThe primary mechanism of compensation for respiratory alkalosis is increased excretion of bicarbonate by the kidneys.
#18
Which condition is characterized by an elevated anion gap and a decreased bicarbonate level in arterial blood gas analysis?
Metabolic acidosis
ExplanationMetabolic acidosis is characterized by an elevated anion gap and a decreased bicarbonate level in arterial blood gas analysis.