Arterial Blood Gas Course Quiz

You are asked to obtain arterial blood from a 60-year-old patient receiving mechanical ventilation. Which of the following is the preferred artery?

• femoral
• brachial
• radial
• dorsalis pedis

When obtaining blood from the radial artery, which of the following is the ideal angle of entry (in degrees)?

• 20-30
• 30-45
• 45-60
• 90

Which of the following is not a possible hazard associated with arterial puncture?

• hypoxemia
• hemorrhage
• infection
• air contamination

Which of the following is the preferred needle size when obtaining blood from the radial artery (in gauge)?

• 18 - 20
• 20 - 22
• 22 - 23
• 25

Which of the following is not a value measured by the typical blood gas analyzer?

• pH
• PO2
• PCO2
• HCO3

Which of the following values requires a co-oximeter to measure?

• PO2
• SO2
• HCO3
• pH