Chapter 14 Phlebotomy

Front

What is vasovagal syncope?

Back

A sudden fainting response that can occur during procedures like arterial puncture, often due to a drop in heart rate and blood pressure.

Front

What does the blood gas parameter HCO₃ measure?

Back

The amount of bicarbonate circulating in the blood.

Front

Why is arterial blood preferred for blood gas determination?

Back

The composition of arterial blood is more consistent compared to venous blood.

Front

What is a key instruction in arterial puncture training?

Back

Observation of procedures is typically included.

Front

Which artery is generally easiest to access during low cardiac output?

Back

Femoral artery.

Front

What is the primary purpose of phlebotomy?

Back

To collect blood samples for diagnostic testing.

Front

What are the common sites for arterial puncture?

Back

Radial, femoral, and brachial arteries.

Front

What is the significance of bicarbonate (HCO₃) in blood gas analysis?

Back

It helps assess the metabolic component of acid-base balance.

Front

What precautions should be taken during arterial puncture?

Back

Ensure proper site selection, aseptic technique, and patient monitoring.

Front

What is the role of oxygen in arterial blood?

Back

Oxygen is essential for cellular metabolism and is transported bound to hemoglobin.