ISTAT EXAM QUESTIONS AND
ANSWERS ALL CORRECT
A result that is flagged with "<,>" or "<>" means that there is a problem with:
A. The cartridge
B. The specimen
C. The instrument - Answer- The specimen
What should you do if you get a display of <,>?
A. Immediately send the specimen to the lab for analysis
B. Repeat the test using the same sample
C. Draw a new sample and repeat using a new cartridge - Answer- C.
A test result that is flagged with "***" indicates an unusual cartridge sensor signal.
Causes may be:
A. Bad sensor
B. Improperly stored cartridges
C. Interfering substance in the sample
D. All the above - Answer- D. All the above
What is the maximum time (time from collection to cartridge fill) for an EG7+ i-STAT
cartridge if the sample was collected in a capillary tube with balanced heparin or lithium
heparin? - Answer- 3 minutes
The External Electronic Simulator QC is required and performed every
_______________. - Answer- 24 hours
All I-stat samples must be tested
A. Immediately
B. Within 10 minutes of collection
C. Within 30 minutes of collection - Answer- A. Immediantely
What is the purpose of the internal simulator
A. It checks the battery
B. It is an internal control device to check the accuracy and sensitivity of the analyzer
C. It recharges the 9-volt battery - Answer- B. It is an internal control device to check the
accuracy and sensitivity of the analyzer
, How often is each individual I-STAT analyzer checker with the internal simulator
A. Every time you use the instrument
B. Every 8 hours of use
C. Every 24 hours - Answer- B. Every 8 hours
Which of the following are true regarding cartridge usage?
A. Cartridges must be at room temperature before testing
B. Air bubbles trapped in the sample will affect testing
C. Sample should be dispensed slowly and steadily until it reaches the full mark
D. All the above - Answer- D. All the above
You preform a G3+, and the meter displays "***" instead of a result for pH. When you
upload the meter what will happen to the test results?
A. No results will be released to the chart, the entire test panel will be sent to an error
bin.
B. You cannot chart any of the results, because no test will be ordered or released
C. Your next action should be to repeat the test with a new cartridge
D. All of the above are true - Answer- D. All of the above are true
If you have an error on an ACT test, can you repeat the test using the same sample? -
Answer- No, you must obtain a new specimen for ACT because it has begun to form
micro clots already
You remove 4 i-STAT G3+ from the refrigerator . The printed expiration date reads
4/1/19. Today's date is 3/1/19. What do you write on the cartridges as the new room
temperature expiration date?
A. 6/1/19
B. 4/14/19
C. 4/1/19 - Answer- C. 4/1/19
Whose responsibility is it to ensure that cartridges used for I-STAT testing are not
expired?
A. Respiratory staff
B. Surgeon
C. Lab staff - Answer- A.
i-STAT TriControl solutions require different temperature stabilization times depending
on whether or not pO2 is to be measured. If pO2 is to be measured, equilibrate the
TriControl solution to room temperature for 3 hours prior to use. - Answer- False
i-STAT TriControls solutions require different temperature stabilization times depending
on whether or not
PO2 is to be measured. If PO2 is to be measured, equilibrate the ampule to room
temperature for 4
hours prior to use. If PO2 is not being measured, equilibrate the ampule for
approximately 30 minutes at
ANSWERS ALL CORRECT
A result that is flagged with "<,>" or "<>" means that there is a problem with:
A. The cartridge
B. The specimen
C. The instrument - Answer- The specimen
What should you do if you get a display of <,>?
A. Immediately send the specimen to the lab for analysis
B. Repeat the test using the same sample
C. Draw a new sample and repeat using a new cartridge - Answer- C.
A test result that is flagged with "***" indicates an unusual cartridge sensor signal.
Causes may be:
A. Bad sensor
B. Improperly stored cartridges
C. Interfering substance in the sample
D. All the above - Answer- D. All the above
What is the maximum time (time from collection to cartridge fill) for an EG7+ i-STAT
cartridge if the sample was collected in a capillary tube with balanced heparin or lithium
heparin? - Answer- 3 minutes
The External Electronic Simulator QC is required and performed every
_______________. - Answer- 24 hours
All I-stat samples must be tested
A. Immediately
B. Within 10 minutes of collection
C. Within 30 minutes of collection - Answer- A. Immediantely
What is the purpose of the internal simulator
A. It checks the battery
B. It is an internal control device to check the accuracy and sensitivity of the analyzer
C. It recharges the 9-volt battery - Answer- B. It is an internal control device to check the
accuracy and sensitivity of the analyzer
, How often is each individual I-STAT analyzer checker with the internal simulator
A. Every time you use the instrument
B. Every 8 hours of use
C. Every 24 hours - Answer- B. Every 8 hours
Which of the following are true regarding cartridge usage?
A. Cartridges must be at room temperature before testing
B. Air bubbles trapped in the sample will affect testing
C. Sample should be dispensed slowly and steadily until it reaches the full mark
D. All the above - Answer- D. All the above
You preform a G3+, and the meter displays "***" instead of a result for pH. When you
upload the meter what will happen to the test results?
A. No results will be released to the chart, the entire test panel will be sent to an error
bin.
B. You cannot chart any of the results, because no test will be ordered or released
C. Your next action should be to repeat the test with a new cartridge
D. All of the above are true - Answer- D. All of the above are true
If you have an error on an ACT test, can you repeat the test using the same sample? -
Answer- No, you must obtain a new specimen for ACT because it has begun to form
micro clots already
You remove 4 i-STAT G3+ from the refrigerator . The printed expiration date reads
4/1/19. Today's date is 3/1/19. What do you write on the cartridges as the new room
temperature expiration date?
A. 6/1/19
B. 4/14/19
C. 4/1/19 - Answer- C. 4/1/19
Whose responsibility is it to ensure that cartridges used for I-STAT testing are not
expired?
A. Respiratory staff
B. Surgeon
C. Lab staff - Answer- A.
i-STAT TriControl solutions require different temperature stabilization times depending
on whether or not pO2 is to be measured. If pO2 is to be measured, equilibrate the
TriControl solution to room temperature for 3 hours prior to use. - Answer- False
i-STAT TriControls solutions require different temperature stabilization times depending
on whether or not
PO2 is to be measured. If PO2 is to be measured, equilibrate the ampule to room
temperature for 4
hours prior to use. If PO2 is not being measured, equilibrate the ampule for
approximately 30 minutes at
