Intro to Diabetes Flashcards
What is Diabetes?
A chronic- multi system disease related to abnormal or impaired insulin utilization
How is diabetes characterized?
Characterized by hyperglycemia (high blood sugar/glucose in the bloodstream) resulting from lack of insulin, lack of insulin effect, or both.
The etiology and pathophysiology of diabetes is a combination of causative factors, what are these? 4
- Genetics; Heredity
- Autoimmune
- Lifestyle
- Absent or insufficient and/or poor utilization of insulin
(Etiology & Patho)
Insulin is made by what cells/where? and is released where?
Insulin is made by the BETA CELLS of the PANCREAS and is released in small amounts into the BLOOD STREAM.
A blood sugar level of < 70 mg/dl is classified as?
HYPOGLYCEMIA
Occurs when there is too much insulin in proportion to available? what is this called?
HYPOGLYCEMIA
Occurs when there is too much insulin in proportion to available GLUCOSE.
counter regulatory hormones can be released when a patient is?
HYPOGLYCEMIC
Does Hypoglycemia worsen rapidly or slowly? when should it be treated?
Hypoglycemia worsens rapidly and needs to be treated ASAP.
What can untreated Hypoglycemia lead to?
Can progress to unconsciousness, seizures, coma, and death.
what are the signs and symptoms of Hypoglycemia? 12
- Cold, Clammy skin
- Numbness of fingers, toes, mouth
- Tachycardia, palpitations
- Headache
- Nervousness, Tremors
- Faintness, Dizziness
- Stupor
- Slurred Speech
- Hunger
- Changes in vision
- Seizures, Coma
- Irritability
What are the physiological consequences of hypoglycemia? 3
- Neurological symptoms
- Hypoglycemia Unawareness
- Autonomic Nueropathy
Factors Affecting Hypoglycemia: (HOSPITALIZATIONS) 4
- Overuse of SSI (Sliding Scale Insulin)
- Lack of dosage changes when dietary intake is changed
- Overly Vigorous treatment of hyperglycemia
- Delayed meal after fast acting insulin is used
A blood sugar level over > 200mg/dl is considered what>
Hyperglycemia
When does hyperglycemia occur?
- Occurs when there is not enough insulin working
- Too much glucose in the blood
Which type, Hyperglycemia or Hypoglycemia has a more gradual onset?
Hyperglycemia has a more gradual onset
Untreated Hyperglycemia can lead to?
- Diabetic Ketoacidosis (DKA)
- or Hyperosmolar Hyperglycemia Syndrome (HHS)
- Coma
- Death
What are some common causes of Hyperglycemia? 7
- Illness, Infection
- Corticosteriods
- Too much food
- Not enough Diabetic Medication ( Insulin, Oral)
- Inactivity
- Emotional, Physical stress
- Poor absorption of insulin
Hyperglycemia signs and symptoms? 12
- Hot and Dry
- Increased Urination (polyuria)
- Increased Thirst (Polydipsia)
- Increased Hunger (Polyphagia)
- Weakness, Fatigue
- Blurred vision
- Headache
- Glycosuria
- Nausea, Vomiting, Abdominal cramps
- Progression to DKA, HHS
- Mood Swings
- Slow healing wounds/ infections
Treatment for Hyperglycemia: 6
- Continued Diabetic medications as prescribed
- Check blood glucose frequently (Record Results)
- Check urine for Ketones (Record Results)
- Drink Fluids at least on an hourly basis
- Exercise or stay active
- Notify HCP if blood glucose levels do not decrease in a few days
Factors affecting Hyperglycemia: HOSPITALIZATION: 4
- Changes in treatment regimen
- Medications
- IV Dextrose
- Overly Vigorous treatment of Hypoglycemia
Diagnostic Studies for Diabetes: 4
- HA1C
- Oral Glucose Tolerance Test
- Fasting Plasma Glucose
- Random Blood Glucose
Hemoglobin A1C : 3
- Also known as Glycosylated Hemoglobin A1C
- Glycosylated hemoglobin is the hemoglobin that glucose is bound to
- Reflects the average blood glucose levels over the past 2-3 months
(Hemoglobin A1C Lab Values)
Normal:
Pre- Diabetes:
Diabetes:
American Diabetes Association recommends an A1C of ?
Normal: less than 5.7%
Pre-diabetes: 5.7%-6.5%
Diabetes: 6.5% and higher
American Diabetes Association recommends an HA1C of less than 7%
(Fasting Plasma Glucose Lab Values )
Normal:
Pre-Diabetes:
Diabetes:
Normal: Less than 100mg/dl
Pre-Diabetes:100-125mg/dl
Diabetes: 126mg/dl or higher
What is the Oral Glucose Tolerance Test (OGTT)?
- Two hour test that checks blood sugar before and two hours after a glucose drink is consumed
- Test shows how well your body processes sugar
(OGTT Lab Values)
Normal:
Pre-Diabetes:
Diabetes:
Normal: less than 140mg/dl
Pre-Diabetes: 140-199mg/dl
Diabetes: 200mg/dl or higher
What is a random blood glucose test?
- Blood can be drawn at anytime
- Seen on a BMP or CMP
- Diabetes: 200mg/dl or higher plus symptoms of diabetes
** 3 P’s + Rapid Weight Loss
What are the two blood glucose monitoring processes?
- Finger stick ( most common)
- Continuous Glucose Monitoring (CGM)
- Provides timely feedback to patient
- Advised before each meal and at bedtime
What is the most common error for glucose monitoring tests?
Blood sample size
Type One Diabetes, Its characteristics: 5
- Autoimmune Disease: antibodies against insulin
- Results from beta cell destruction in the pancreas
- Auto-antibodies present for months to years before clinical symptoms
- Leads to absolute insulin deficiency
- Insulin Dependent
A patient with diabetes Mellitus type one might experience what signs and symptoms? 10
- Polyuria (^ pee)
- Polydipsia (^ thirst)
- Polyphagia (^ hunger)
- Weight loss: takes proteins and fats to create energy
- Fatigue
- ^ Frequency of infections
- Rapid Onset
- Insulin Dependent
- Familial Tendency
- Peak incidence from 10 to 15 years
How would a patient get diagnosed with type one diabetes?
- HA1C
- Fasting Plasma Glucose (FPG)
- Oral Glucose Tolerance Test (OGTT)
- Random blood glucose plus symptoms of diabetes
What are the characteristics/causes of type 2 diabetes?
- caused by insulin resistance or deficiency
- more common in adults
- progressive disease, slower onset
Modifiable risk factors of type 2 diabetes? (5)
- Obese/ Fat distribution
- Physical inactivity, sedentary lifestyle
- Hypertension/ high cholesterol
- poor diet
- smoking/ alcohol consumption
Non-Modifiable risk factors of type 2 diabetes? (6)
- Family History
- Race/ Ethnic background: African American, Latino, Pacific Islander
- Age
- Pre-diabetic and gestational diabetes
- PCOS (Poly-cystic ovary syndrome)
- Chronic Glucocorticoid exposure
Genetic Mutations of type 2 diabetes?
Insulin resistance & familial tendency
A patient with type 2 diabetes can have what signs and symptoms? 8
- Polyuria, Nocturia
- Polydipsia
- Polyphagia
- Recurrent infection
- Prolonged wound healing
- Visual changes
- Fatigue, low energy
- Metabolic Syndrome
A patient with type 2 diabetes have what lab values? (3)
- HA1C ^ 6.5%
- FPG ^ 126mg/dl
- Prediabetes FPG ^ 100-125 mg/dl
How do you diagnose a patient with type 2 diabetes?
- HA1C
- Fasting Plasma Glucose (FPG)
3 Oral Glucose Tolerance Test (OGTT) - Random Blood Glucose plus symptoms of diabetes
What are some treatment options for a patient with type 2 diabetes? (4)
- Diabetic Medications : Insulin or Oral
- Lifestyle Changes
- Tight Glycemia control
- Increased activity levels
What are some short term diabetic complications?
- Hypoglycemia
- Hyperglycemia
- Ketoacidosis
What are some long term micro-vascular diabetic complications? (3)
- Retinopathy
- Nephropathy
- Neuropathy
What are some other long term diabetic complications? (3)
- Foot Ulcerations
- Amputations
- Sexual dysfunctions
Home Foot Care Rules for Diabetic Patients: (14)
- check daily for injuries or breakdown
- wash daily with mild soap and warm water
- moisturize with lanolin
- Do not let lotion cake between the toes or it will cause skin breakdown
- Annual exams by professional
- well fitting shoes
- no barefoot or sandals
- break in new shoes over several days
- clean socks daily
- no tight elastic topped socks
- corns or calluses to be removed by professional
- nails cut straight then file edges
- warm socks if feet are cold
- pedicures are not recommended
What would you as a nurse do to prevent diabetic complications? (5)
- patient education
- assess barriers to learning
- teach in increments
- promote self care
- adjust regimen to meet pt needs
What are some patient barriers when it comes to educating the patient on their diabetes? (8)
- degree of life changes and complexity of management plan
- cost of care
- access to medical treatment
- cultural factors
- lack of family support
- lack of knowledge
- fears
- other stressors
Increasing adherence to pt education by? (7)
- encourage patient and family to take care of their health
- simplify regimen
- focus on the normal, not the differences
- teach the tools
- help the pt get supplies
- provide safe harbor
- provide adequate education
Nutrition therapy goals includes: (5)
- maintain blood glucose levels
- lipid profiles and bp levels
- prevent/slow rate of chronic complications
- nutritional,cultural, personal and economic needs
- maintain the pleasure of eating
(nutrition)
type 1 guidlines include: (3)
- meal planning (portion control, balanced w insulin and exercise)
- day to day consistency
- more flexible with rapid-acting insulin, multiple daily injections and insulin pump
(nutrition)
Type 2 guidelines include:
- emphasis on achieving glucose, lipid and bp goals
- weight loss
(Glycemic index)
Foods with a high glycemic index do what?
Foods with a high glycemic index raise glucose levels faster and higher than foods with a low glycemic index
** may provide modest additional benefit over consideration of total carbohydrates alone
What must you teach diabetic patients about sugar free foods?(3)
- sugar-free does not mean carbohydrate free
- sugar free foods often have higher saturated fat compared to the regular products
- important to teach patients to look at food labels
what are sugar alcohols? (3)
- Found on most sugar free foods
- include: sorbitol, mannitol, xylitol, and isomalt
- Eaten in large quantities can cause abdominal cramping, flatulence and diarrhea
what would you inform a diabetic patient on who drinks alcohol?
- Limit - moderate amount
- Inhibits glucogenesis
- monitor blood glucose
- Consume carbohydrates
- high in calories
guidelines to alcohol consumption:
- do not skip meals
- risk of low blood sugar
- may increase triglycerides
What are the sick day rules for a diabetic patient?
- maintain normal diet if able
- increase non-caloric fluids
- continue taking anti diabetic medications
- if normal diet is not possible, supplement with carb containing fluids while continuing medications
S:
I :
C:
K :
Sugar: check your blood glucose every 2 or 3 hours or as necessary
Insulin: Always take insulin, not taking it could lead to DKA
Carbs: drink lots of fluids, if sugar high= sugar free drinks
sugars are low= carb containing drinks
Ketones: check urine or blood ketones every 4 hours
take rapid acting insulin if ketones are present
** go to slide 171 for graph
2 groups of insulins:
Endogenous insulin: originating within the body (pancreas makes)
Exogenous insulin: originating outside the body (injection or infusion via pump)
What are the 4 counterregulatorey hormones?
- Glucogon
- Growth Hormone
- Epinephrine
- Cortisol