Endocrine LAB Flashcards
1
Q
Are different methods of glucometers more accurate than others? Why?
(Such as: vet glucometers vs human glucometers, or vs Catalyst)
A
Yes, different monitors are programmed/calibrated for different species
2
Q
What is the additive to a grey top tube?
A
Potassium oxalate/sodium fluoride
3
Q
What does the additive in grey top (K+ oxalate/Na+ fluoride) tube do to the blood sample?
A
Prevent clotting & preserve glucose levels in the sample
4
Q
What are the three main components of Continuous Glucose Monitors (CGM)?
A
- Flexible, electroenzymatic, polyurethane membrane probe that is inserted via an introducer device thru the patient’s skin into the interstitial space (SQ).
- Small sensor, attached to the probe, that adheres to the surface of the patient’s skin.
- Handheld monitor, which may be a dedicated reader or smart phone.
5
Q
How to apply a continuous glucose monitor: (6)
A
- Gather materials: clippers, alcohol wipes, sensor, gloves, & medical adhesive.
- Select application site. Should be somewhere out of reach of patient and limited SQ movement.
- Shave & clean area with alcohol. Allow to air dry.
- Medical glue can be applied in a half donut formation on monitor.
- Check sensor & applicator device lot numbers and expiration dates.
- Apply firmly to patient until “click” is heard. Continue firm pressure for additional 10-20 seconds. Gentle remove application device.
6
Q
Advantages of continuous glucose monitor (3)
A
- Consistency & comfort
- Can eliminate the need for in-house glucose curves performed with multiple BD or ear pricks. - Enhanced data collection
- Have been used to detect clinically relevant hypo-/hyperglycemic episodes.
- Collect data at times that were not previously feasible. - Fewer resources needed & staff involvement.
7
Q
Disadvantages of continuous glucose monitors (5)
A
- Even with correct placement, 10-25% of sensors don’t work.
- Patient or sensor movement; limited SQ space or thin Pt; adhesive failure; bleeding; site infection can affect sensor.
- Patient attempts to remove
- Cost is about $100/sensor
- Short function time in vet patients.
- Designed to last 10-14 days in humans, 5-7 days of function is more common in veterinary patients.
