Test 1 Flashcards
(234 cards)
What three things is DM the leading cause of?
Adult blindness, end-stage kidney disease, and non-traumatic amputations
When is insulin released?
Insulin is released into the bloodstream in small increments throughout the day, with larger amounts being released after food consumption to stabilize glucose levels.
What is normal glucose range?
70-110 mg/dl
What three things are major contributing factors of DM?
Heart disease, stroke, and HTN
What are four counter-regulatory hormones for insulin?
Epinephrine, Growth hormone, Cortisol, Glucagon
What do counterregulatory hormones for insulin do?
Stimulate glucose production and release by the liver, decrease movement of glucose into cells, and help maintain normal BG levels
What are the four tests that can be used to diagnose DM?
HA1C, FBG, OGTT – 2 hour oral glucose tolerance test, RBG- random blood glucose
What are medications that can increase BG?
Corticosteroids, Phenytoin’s (antiseizures), Thiazide diuretics
What is the gold standard test for DM?
HA1C
What does a hemoglobin A1C measure?
The average blood glucose levels over the prior 3 months but does not give info on acute changes
What is the normal level for HA1C?
<6.5 %
How long should someone have no caloric intake for a fasting plasma glucose test?
At least 8 hours
What is the normal range for fasting plasma glucose test?
70-110 mg/dl
What level on a FBGT would be considered a positive DM diagnosis?
Greater than or equal to 126 mg/dl
What happens during an oral glucose tolerance test?
The patient consumes a beverage with glucose after fasting 8-12 hours; blood is taken before, and 1 to 2 hours after consumption.
What is a normal level for an OGTT?
<140 mg/dl
What level from an OGTT would suggest prediabetes?
140-199 mg/dl
What level from an OGTT would be positive for DM?
200 mg/dl or greater
What are symptoms of hypoglycemia?
Stupor, confusion, difficulty speaking, coma, altered mental functioning, visual disturbances
What can untreated hypoglycemia lead to?
Coma, seizures, death, loss of consciousness
How do you treat a low glucose level outside of the hospital?
Administer glucose (juice, soda, bread, or crackers), check fingerstick 15 minutes after administration of glucose, if levels are still low repeat glucose and after the BS reaches normal level, eat a meal or snack with fat and protein.
How do you treat low glucose level inside the hospital (if the patient is unable to swallow)?
IV dextrose 25-50 mL of D50;
no IV access: 1 mg IM glucagon injection to release glucose stored in the liver.
What is hypoglycemia unawareness?
No s/s until glucose level is critically low which is related to autonomic neuropathy and lack of counter-regulatory hormones.
If a patient is at risk for hypoglycemia unawareness, what should they do?
Keep their blood sugars slightly higher (120-125)