Chap # 6 Blood Gas Lab

Question 1

Arterial Blood Gas Kit cosist on?

Answer 1

• 3 - 5 cc Syringe, pre- heparinized)
• 22 ga x 2 needle
• Alcohol swap
• Gauze pad
• Bizohard bag
• Misc. Items

Question 2

ABG Collection Site

Answer 2

ABG Collection Site

• Radial
• Bracheal
• Femoral
• Dorsalis Pedis

Question 3

Most common site for ABG Specimen is?

Answer 3

The Radial Artery is the most common because there is collateral cinculation to the hand (Ulnar Artery) in case that we damage the radial artery.

Question 4

Radial Artery Angle of insertion is?

Answer 4

45 angle degree

Question 5

Bracheal artery angle of Insertion?

Answer 5

Is 60 - 90 Angle Degree

Question 6

Femoral Artery Insertion Angle is?

Answer 6

90 Degree almost straight down

Question 7

TRUE or FALSE

After Blood Sample is taken, site must be compressed until clotted.

Answer 7

TRUE

Question 8

Hazards of ABG

Answer 8

• Hematoma
• Arterial laceration
• Hemorrhage
• Vasovagal reaction
• loss of Limb

Question 9

TRUE or FALSE

Blood Gases should be collected anaerobically?

Answer 9

TRUE

No air should be in ABG sample, Blood gas is a living tissue, as a consecuence will consume O2 and create CO2 afecting the sample

Question 10

ABG Handling

Answer 10

• Blood gas specimen must be adequately anticuagulated (Heparin)
• sample volume should be 1 - 2 ml (enough to run at least twice in case first one did not work)
• Sample should be analyzed as soon as possible ( plastic syringe can be iced for 15 min)
• Specimen should be acequatelly identified
• Transport specimen in biohazard container
• Temperature correct specimen in analizer.

Question 11

What should be an adequatelly specimen identification?

Answer 11

• Patient name/ ID number
• Date/ Time
• Ordering Physician
• Accession Number
• Puncture site
• O2 adjunct and FiO2
• Ventilation setting

Question 12

Increased Body temperature, how will affect ABG sample?

Answer 12

It will ↑PO2, ↑PCO2, ↓PH.

Question 13

Decreased Body temperature, how will affect ABG sample?

Answer 13

It will ↓PO2, ↓PCO2, ↑PH

Question 14

Blood Gas Analyzer measures:

Answer 14

• PH
• PCO2
• PO2

this is only blood gas, not cooxymetry

Question 15

what is the PH electrode

Answer 15

Sannz electrode

Question 16

What is the PCO2 electrode?

Answer 16

Severinghaus electrode, May be also refered as a modified Sanz Electrode

Question 17

What is the PO2 electrode

Answer 17

Clark Electrode, may also be refered as a polarographic electrode.

Question 18

TRUE or FALSE

Calibration procedure is performed automatically every 30 minutes by the ABG machine ( it calibrate PH, PCO2, PO2)

Answer 18

TRUE

Question 19

Two point calibration consist on:

Answer 19

A low and High concentration is used at both ends

Question 20

What is calibration?

Answer 20

Is when the equipment is adjusted or corrected to match the control standars

Question 21

What is Quality Control?

Answer 21

Testing must be performed on a regular basis to determine the accuaracy and precision of the equipment

Question 22

TRUE or FALSE

Quality Control must be done every shift?

Answer 22

TRUE

Question 23

Accuaracy is?

Answer 23

Refer to the mean value of several measurements

Question 24

Precision is?

Answer 24

Refer to how consistently the same measurement will produce the same results

Question 25

What are the quality control plotting

Answer 25

• In Conrol
• Trend
• Random Error
• Out of Control

Question 26

What trend is this?

Answer 26

In control

Question 27

This is:

Answer 27

Trend

Question 28

this is ?

Answer 28

Random