ABG Values

Question 1

ABG needle angles and Gauges Per site: Radial

Answer 1

30-45 Degree needle insertion
- 23G x 1in
- 25G x 5/6in

Question 2

ABG needle angles and Gauges Per site: Brachial

Answer 2

60-90 Degree needle insertion
- 23G x 1in
- 25G x 5/6in

Question 3

ABG needle angles and Gauges Per site: Dorsal

Answer 3

30-60 Degree needle insertion
- 23G x 1in
- 25G x 5/6in

Question 4

ABG needle angles and Gauges Per site: Femoral

Answer 4

90 Degree needle insertion

• 22G x 11⁄4in
• 21G x 11⁄2in
• 18G x 11⁄2in

Question 5

Clotting Factor Norms for ABGS: Platelet Count

Answer 5

• 150-400 10^9 /L
• critical < 10

Question 6

Clotting Factor Norms for ABGS: INR

Answer 6

• 0.9-1.1
• critical value >5

Question 7

Clotting Factor Norms for ABGS: Activated Partial thromboplastin time (aPTT)

Answer 7

• 27-37 sec
• critical is > 120 sec

Question 8

Clotting Factor Norms for ABGS: Fibrogen

Answer 8

• 1.6-4.1g/L
• critical ≤1g/L

Question 9

If blood is drawn for a blood culture, what are the cleaning standards/procedures?

Answer 9

use calgary lab services standards:

• 70% isopropyl alcohol pre-cleanse 30 sec and allow dry
• then 2% chlorhexidine with 70% isopropyl alcohol or 10% povidone-iodine (allow dry 1-2min)

Question 10

If blood is drawn for a ABG, what are the cleaning standards/procedures?

Answer 10

Clean site w/alcohol swab and let dry for 30 seconds