Arterial Line

Question 1

Arterial Line indications

Answer 1

Continuous monitoring of blood pressure- for patients with hemodynamic instability requiring vasopressor medication
Measurement of arterial oxygenation and for frequent blood sampling- used for patients needing frequent blood sampling

Question 2

Arterial lines contraindications

Answer 2

should not compromise the circulation distal to the placement site
Infection of the site where the catheter is to be placed
traumatic injury proximal to the proposed insertion site

Question 3

Arterial Line complications

Answer 3

Arterial spasm and the inability to pass the wire or the catheter through the artery are the most common difficulties in catheterization.

Question 4

What is the normal variation between an auscultated BP and an A-line? Which is higher?

Answer 4

Variation of 5-20 mm Hg is normal

Invasive lines are expected to be higher

Question 5

What is an Allen Test?

Answer 5

When you compress both the radial and ulnar artery until blood supply is cut off to the hand and the hand turns whiter, then release on of the arteries to test circulation

Question 6

What are the allen test results?

Answer 6

A normal test is when color is restored to the hand within 5-7 seconds
If it takes 7-15 seconds, filling is impaired
If is takes >15 seconds, circulation is inadequate

Question 7

What is the proper placement for A-line insertion

Answer 7

1-2 cm from the wrist, between the radius and the flexor carpi radials tendon

Question 8

What should you do if a patient has an arterial spasm upon insertion

Answer 8

Abandon attempts at catheterization and choose an alternative site