Insulin Treatment Flashcards
What is the origin for insulin biosynthesis?
Recombinant DNA
Which is the only insulin used as an IV formulation?
Regular
Why can NPH not be given as an IV?
It is a suspension
Why can glargine not be given as an IV?
Clear solution but it precipitates at physiological pH and stings when injected
Why can detemir not be given as an IV?
Clear solution but it binds albumin
Why can degludec not be given as an IV?
Clear solution but it causes severe hypoglycemia when given IV
Is insulin given in Type 1 or Type 2 diabetes?
BOTH
-especially Type 1
What fasting glucose levels indicate that insulin should be started?
High levels >280-300 mg/dL
What affect does insulin have on hyperkalemia?
Insulin pushes potassium back into cells
-this is used to treat hyperkalemia
What is a disadvantage to using pre-mixed insulins?
Cannot adjust the dosing of just one of the ingredients
(decreased individuality of dosing)
Arrange the routes of administration of insulin from fastest acting to slowest acting
(Include: IM, SQ, IV, Intranasal)
Intranasal > IV > IM > SQ
What are the three sites for insulin injection and how fast is the insulin absorbed at the sites?
Fastest: Stomach
Slowest: Buttocks, Thigh
How does temperature affect insulin absorption?
Heat increases insulin absorption and action
*do not want patient rubbing their injection site because it changes heat and blood flow
How does exercise/ massage affect insulin absorption and action?
Increases absorption and action
*do not want patients exercising right after injecting insulin
When making a mixture of insulin, which insulins should be drawn up first and second?
Short-acting should always be drawn up first
NPH should be drawn up second
(can make the insulin cloudy, contaminate it and lose the short-acting insulin effects if drawn up first)
How does U-500 insulin compare to U-100 insulin?
U-500 insulin has:
-Delayed onset and peak
-Longer duration of action
-Smaller volume
-Increased absorption
What affect does renal failure have on insulin action?
Renal failure decreases insulin clearance
**this INCREASES insulin action