glucometer

Question 1

point-of-care test device used for glucose monitoring close to the site of patient care

Answer 1

glucometer

Question 2

Blood from a capillary puncture is introduced to a test strip with enzymes such as ___, _____, or ______

Answer 2

glucose oxidase, hexokinase, or glucose dehydrogenase

Question 3

using a glucometer, glucose is detected using _______ or _____ methods.

Answer 3

reflectance or electrochemical .

Question 4

T/F Glucometers are in vitro diagnostic test systems that can be used in the home, in a physician’s office, or at the bedside in hospitals.

Answer 4

T

Question 5

purpose of wiping the first drop of blood after pricking the finger

Answer 5

remove any contaminants or tissue fluids that may affect the glucose reading.

Question 6

Odd One Out: Affect whole blood glucose readings in a glucometer

A) Hematocrit
B) Analysis technique
C) Plasma glucose levels
D) Sample timing (fasting vs. postglucose load)

Answer 6

C) Plasma glucose levels – Whole blood gives 10-15% lower readings compared to plasma, but plasma glucose levels are not directly used in the point-of-care test.

Question 7

specimen used in point-of-care glucose monitoring devices like a glucometer

Answer 7

Whole blood glucose specimens

Question 8

T/F The depth for a finger prick should not go beyond 2.4 mm, and a depth of 2.2 mm is commonly used.

Answer 8

T

Question 9

T/F: Glucometers can be used to monitor both hypoglycemia and hyperglycemia in diabetic patients.

Answer 9

T

Question 10

materials needed for blood glucose determination using a glucometer

Answer 10

Cotton/alcohol wipes, glucometer device, test strips, lancing device, lancet, and PPE (gloves).

Question 11

Which of the following steps in the glucometer procedure is incorrect?
A) Sterilize the ring or middle finger before pricking.
B) Use the first drop of blood for testing.
C) Wait for the finger to dry after sterilizing it.
D) Insert the test strip into the meter before pricking the finger.

Answer 11

B) Use the first drop of blood – should be wiped off before testing.

Question 12

primary advantage of using a glucometer

Answer 12

immediate results without need for lab transpo

Question 13

T/F: Glucometers work well within clinical patient flow and can provide results quickly without requiring laboratory processing.

Answer 13

T

Question 14

type of specimens can be analyzed by a glucometer

Answer 14

whole blood, urine, and other body fluids.

Question 15

T/F: Glucometers allow for the analysis of small blood volumes and are integrated into clinical patient flow.

Answer 15

T

Question 16

disadvantage of using a glucometer in comparison to traditional laboratory tests

Answer 16

generally more expensive

Question 17

T/F Since anyone can run the analysis, the quality of glucometer results are sometimes questionable

Answer 17

T - leads to inconsistencies in quality.

Question 18

Odd One Out: Common disadvantage of using a glucometer
A) Expensive compared to lab tests
B) Immediate results without lab transportation
C) Difficulties with regulatory compliance and billing
D) Lack of formal education/experience of staff

Answer 18

B) Immediate results without lab transportation – advantage

Question 19

purpose of quality control (QC) tests for glucometers like the ACCU-CHEK® Performa meter

Answer 19

verify the reliability of results, the integrity of test strips and QC solutions, and accuracy of the operator’s technique.

oaaaa

Question 20

when should a quality control test be performed for a glucometer

Answer 20

• Every 24 hours
• Before patient testing if the last QC test was more than 24 hours ago
• When opening a new container of test strips or QC solutions
• If the meter is dropped
• If glucose result is inconsistent with the patient’s clinical presentation.

Question 21

T/F: It’s okay to not perform a quality control test if a new vial of QC solutions or test strips is opened.

Answer 21

F - not ok .

Question 22

supplies needed to perform a quality control test on the ACCU-CHEK® Performa meter

Answer 22

Glucometer, test strip container, and Quality Control solution vials 1 and 2.

Question 23

how long can the QC solutions be used after opening the vial

Answer 23

until the expiry date on the vial label or 90 days from the date they were first opened

*whichever comes first

Question 24

Odd One Out: Inserting a test strip for QC testing
A) Insert the test strip into the meter in the direction of the arrows
B) Compare the code number on the screen with the code on the test strip container
C) Leave the test strip container open to access more strips quickly

Answer 24

C) Leave the test strip container open – close the container immediately to protect remaining strips from humidity

Question 25

The QC solution must be mixed by inverting the vial __ times before applying it to the test strip.

Answer 25

5

Question 26

When enough QC solution is applied to test strip, a/an ___ symbol flashes on the screen, indicating that the meter is analyzing the QC solution.

Answer 26

hourglass

Question 27

to specifiy level of QC solution used in the test, use the ____ button to select whether you used QC solution vial 1 or 2

Answer 27

forward arrow

Question 28

Odd One Out: Quality control test? A) Discard the first drop of QC solution B) Invert the QC vial 5 times to mix the solution C) Use the QC solution even if it has expired, as long as the strips are not expired

Answer 28

C) Use the QC solution even if it has expired – teh ?????

Question 29

T/F: Glucometers can be used to monitor both hypoglycemia and hyperglycemia in diabetic patients.

Answer 29

T

Question 30

The word OK alternates with the result on the screen after a QC test signifies that results is within ________

Answer 30

acceptable range

Question 31

when the word Err alternates with the result on the screen after a QC test, it means that the result is ?

Answer 31

out of range

Question 32

T/F: If the QC test result remains outside the acceptable range after two attempts, you should continue using the meter for patient testing.

Answer 32

F - should not use; refer the laboratory test.

Question 33

Limit of QC results outside acceptable range before taking action

Answer 33

2

Question 34

what to do if the QC test fails after two attempts and the result is out of range?

Answer 34

contact the POCT lab for troubleshooting assistance and refer patient tests to the laboratory.

Question 35

Odd One Out: Documenting QC results A) Note the result if it is within the acceptable range B) Ignore the result if it says "Err" C) Document the result in the Point of Care Quality Assurance & Maintenance Record D) Repeat the QC test if the result is out of range

Answer 35

B) Ignore the result if it says "Err" – identify and correct any errors if the result is out of range.

Question 36

to what colored cap should you securely place back QC solution vial 1 after finishing the QC test

Answer 36

Grey

Question 37

to what colored cap should you securely place back QC solution vial 2 after finishing the QC test

Answer 37

white

Question 37

T/F: Patient testing can be done after completing one QC test with an OK result.

Answer 37

F – Patient testing cannot be done until both levels of QC (using vials 1 and 2) are performed and OK displays for both tests

Question 37

three considerations for system accuracy in glucometer testing

Answer 37

- Effectiveness of current technology for monitoring diabetes - Recommendations from diabetes researchers and regulatory guidelines - State-of-the-art blood-glucose monitoring technology

Question 37

Odd One Out: Requirement for system accuracy in glucometer testing A) Current technology for diabetes monitoring B) Recommendations from diabetes researchers C) Blood-glucose monitoring technology innovations D) Low cost of the system

Answer 37

D) Low cost of the system – not a requirement for system accuracy; it is based on technology and recommendations.

Question 38

main goal of performing QC tests before patient testing

Answer 38

ensure the accuracy and reliability of the glucometer results

Question 38

how often should QC tests be performed if patient testing is done regularly

Answer 38

every 24 hours or immediately before patient testing if it has not been done within the last 24 hours

Question 38

T/F: Both QC solution vials (1 and 2) must pass the QC test before patient testing can proceed.

Answer 38

T