Point-of-care testing devices and procedures such as glucose meters and rapid tests used alongside venipuncture.
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- What does POCT stand for?
- Point-of-care testing
- What is the main principle behind electrochemical glucose meters?
- Detection of electrical current produced when glucose reacts with the enzyme on the test strip
- Why must control solutions be used with POC devices?
- To verify meter accuracy and detect operator or instrument errors
- What must always be checked on test strips before use?
- Expiration date
- What does a positive quality control result indicate?
- The meter is functioning properly and producing accurate results
- What timeframe does hemoglobin A1C reflect for glucose control?
- Average blood glucose over the past 2-3 months
- What specimen type is used for point-of-care cholesterol testing?
- Capillary blood from a fingerstick
- What does an INR device measure?
- International Normalized Ratio to monitor anticoagulation therapy
- What specimen type is required for point-of-care blood gas analysis?
- Arterial blood
- What does a hemoglobin POC meter measure?
- Hemoglobin concentration in whole blood
- What is the normal reference range for hematocrit in adult males?
- 41-53 percent
- What is the normal reference range for fasting plasma glucose?
- 70-100 mg/dL
- When must a critical value from POC testing be reported?
- Immediately to the ordering physician
- What is a delta check used to detect in laboratory testing?
- Significant or unusual changes in a patient's result compared to their previous result
- Which specimen is the standard for point-of-care glucose testing?
- Capillary blood obtained by fingerstick
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