Diabetes Flashcards
People with type 1 diabetes may develop a condition called _____________________ .
Diabetic Ketoacidosis (DKA)
People with type 2 diabetes may develop a condition called _____________________ .
Hyperglycemia hyperosmolar syndrome (HHS)
Both DKA and HHS ‘ pathophysiology is similar and involve what?
Extreme hyperglycemia induced by acute insulin deficiency and lead to serum hyperosmolarity.
DKA can develop in __________
hours
HHNS can develop in _____
Several days
What are the primary causes of DKA & HHNS?
Undiagnosed DM, illness/infection, and decreased or missed insulin doses.
What are the 3 P’s that are the classic signs and symptoms of DM?
Polyuria - increased urination
Polydipsia - increased thirst
Polyphagia - increased hunger
Apart from the 3 P’s, what are the other manifestations of DM?
- Fatigue
- Weakness
- Dehydration
- Frequent infections
- Skin infections that are slow to heal
- Tingling, numbness, and loss of sensation in the extremities (neuralgia)
- vision changes due to retinopathy
What are 3 manifestations of DM complications?
- Hypoglycemia
- Diabetic Ketoacidosis
- Hyperglycemic hyperosmolar nonketoic syndrome (HHNS)
To assess for DM, what 4 different blood tests may be used?
- Random blood glucose reading .200 mg/dl as well as symptoms of diabetes
- Fasting blood glucose reading >126 mg/dl - taken after 8-12 hr fasting
- Glucose tolerance test showing a level > 2000 mg/dl in the second hour and at least on one other occasion during the test.
- Glycosylated hemoglobin >6.5%. Average blood glucose over the past 3 months.
Explain diabetic retinopathy.
It occurs when capillaries int eyes’ retina hemorrhage cause the patient with diabetes to report “floaters” and/or vision loss.
Why would we test a patients urine for acetone to assess for DM?
Acetone is normally absent in the urine, it is one of the ketone bodies produced during fatty acid metabolism - its presence indicates that the person with type 1 diabetes has impaired glucose control and is at risk of DKA.
How do we check for evidence of Diabetic neuropathy?
By testing the soles of the feet and lower legs for sensation.
What type of Insulin is Lispro?
Fast acting
What’s the onset time of Lispro?
15-30 min
what is the peak time of Lispro?
30-90 min
What’s duration of Lispro?
<5hr
What type of insulin in Regular Insulin in terms of ‘time”
Short-acting
What’s the onset, peak and duration of regular insulin?
Onset : 30-60 min, Peak : 2-3hr, Duration 4-6 hr
Mention two long-acting Insulin preparations.
Detemir & Glargine
What is the peak time of Detemir & Glargine?
There is no peak
What’s the duration of Detemir & Glargine?
24 hr
Explain what is meant by Dawn phenomenon.
It is a side effect of Insulin and presents itself as an early morning rise in blood glucose levels.
What are some other side effects of Insulin?
- Hypoglycemia
- Lipodystrophy (skin changes r/t to using the same injection site)
- Insulin allergy
- Insulin resistance.
As a nurse caring for diabetic patients in hospital, with what glucose reading should you alert the provider?
Readings below 70 mg/dl or over 250 mg/dl
Insulin therapy begins to drive _____________ back into the cells.
Potassium.