endocrine 3 part 2. acute complications of dm hypoglycemia diabetic ketoacidosis hyperglycemia...
TRANSCRIPT
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Endocrine 3
Part 2
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Acute complications of DM
• Hypoglycemia• Diabetic Ketoacidosis• Hyperglycemia Hyperosmolar Non-ketonic
Syndrome
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Hypoglycemia
• AKA Insulin reaction• Definition:When blood glucose levels fall
below 70mg/dl• < 50mg/dl = severe
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Hypoglycemia: Etiology
• Any time• Skip meal• Under-eating• Eating late• Unplanned exercise• Excess insulin or oral hypoglycemic meds
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Hypoglycemia: Signs & Symptoms
• Mild– Diaphoresis– Pallor– Paresthesia– Palpitations– Tremors– Anxiety
• Adrenal Medulla
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Hypoglycemia:Signs & Symptoms
• Moderate:– Confusion/disorientation– Behavioral Changes
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Hypoglycemia:Signs & Symptoms
• Severe– Seizures– Loss of Consciousness– Shallow respirations
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Hypoglycemia: Diagnosis
• Signs & Symptoms• SMBG• FSBG• FSBS
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Hypoglycemia: Medical Management
• Follow protocol• blood sugar level• Admin. fast sugar
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Hypoglycemic Protocol: Sample
• For BG <60 mg/dL– If patient can take PO, give 15g of fast acting
carbohydrate. (4 oz fruit juice/non diet soda, 8 oz nonfat milk, or 3-4 glucose tablets)
– If patient cannot take PO, give 25mL of D50 as IV push
– Check FSBG q 15 minutes and repeat above if BG<80.
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Glucose Fast!
10-15 mg fast acting carbohydrate• Glucose tabs• 4-6 oz. Juice or soda• 6-10 lifesaver candies• 2-3 tsp honey/sugar
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Rules to remember
• Do not add sugar to OJ• Recheck FSBS q 15 min until WNL• Avoid high fat slows absorption of glucose• Instruct: carry fast sugar• If meal is >1 hr away, follow with a protein
and complex carbohydrate• NPO if “unconscious” or confused
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Protein Sources
• 1 Tbsp peanut butter• 1 oz cheese• 1 oz meat
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Hypoglycemia treatmentUnconscious
• IV 25-50 mm of 50% dextrose in water • Glucagon 1 mg Sub-Q or IM– Action: (hormone) raises BS levels– Onset:10 minutes – Duration 25 minutes– S/E: N/V
• Position: side lying
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HypoglycemiaGerontological Consideration
• Cognitive deficits – not recognize S&S
• Decreased renal function – oral hypoglycemic meds stay in body longer
• More likely to _________a meal– Skip
• Vision problems – inaccurate insulin draws
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HypoglycemiaNursing measures
• Follow protocol• Teach– Carry simple sugar at all times– S&S or hypoglycemia– How to prevent Hypoglycemia– Check FSBS if you suspect NOW!
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HypoglycemiaNursing measures
• Enc. to wear ID bracelet
• Teach family that belligerence is sign of hypoglycemia
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Diabetic Ketoacidosis (DKA)
• Serious complication of hyperglycemia due to lack of insulin
• Usually occurs with type I DM
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DKA: Etiology
• #1 cause illness, infection, stress• Absence or inadequate insulin• Initial or undiagnosed diabetes
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Diabetic Ketoacidosis (DKA)
4 main clinical features1. Hyperglycemia2. Dehydration3. Electrolyte loss4. Metabolic Acidosis
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Pathophysiology DKANo Insulin
Glucose stays in blood -
Hyperglycemia
Muscle not getting energy
fat metabolism
Osmotic diuresis
Polyuria
Polydipsia
Electrolyte loss
Increased ketone in blood
Metabolic Acidosis
serum pH
Dehydration
respiratory rate
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S&S of DKA
• Hyperglycemia–↑blood glucose– Tired– Polyphagia– Decreased attention, confusion– N/V, abdominal pain– Blurred vision
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S&S of DKA
• Dehydration– Polydipsia– Polyuria– Dry/flushed skin– Orthostatic hypotension– Tachycardia– Headaches– Decreased Na+ and K+ levels
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S&S of DKA
• Acidosis–↑Resp. rate Kussmaul’s– Fruity breath, acetone breath– Serum pH • Decreased
– Normal Serum pH 7.35 – 7.45– pH = acidic / acidosis– pH = alkaline/ alkalosis
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DKA: diagnosis
• Blood sugar levels– Elevated
• Serum pH– Decreased (< 7.35)
• BUN Blood Urea Nitrate– increased = dehydration
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DKA: diagnosis
• Urine– Ketones• +
– Specific gravity of urine•
• Serum Osmolality– – thick
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DKA: diagnosis
• Hemoglobin– Normal• Female : 12-16 g/dL• Male: 14-18 g/dL
– Elevated• Dehydration• COPD
– Decreased• Anemia, hemorrhaging, over-hydration
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DKA: Diagnosis
• Hematocrit– Normal• Female: 37-47%• Male 42-52%
– Elevated• Dehydration & COPD
– Decreased• Anemia, leukemia
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DKA: diagnosis
• Serum Potassium levels– Normal levels• 3.5-5.5 mEq/L• Increased K+ levels = Hyperkalemia• Decreased K+ levels = Hypokalemia
– Purpose of K+
• Skeletal & cardiac muscle activity
– DKA decreased K+ levels
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Hypokalemia S&S
• Fatigue• Anorexia N/V• Muscle weakness• Leg cramps• Dysrhythmias• ↑sensitivity to digitalis
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Treatment of DKA
• Focus on the four main clinical features– Hyperglycemia– Dehydration– Electrolyte loss– Acidosis
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Treatment of DKA
• Hyperglycemia– Give insulin IV
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Treatment of DKA
• Dehydration– Rehydrate• IV, push fluids• I&O• Check vital signs• Check Lung sounds• Monitor lab values
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Treatment of DKA
• Electrolyte loss– Polyuria loss of K+
– Treatment of DKA dehydration drop in K+
5 K / 1 ml serum 5 K / 2 ml serum5.0 mEq/L 2.5 mEq/L
K K K K K K K K K K
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Treatment of DKA:
• Electrolyte loss– Replace K+– Monitor lab values closely
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Treatment of DKA
• Acidosis– Reversed with insulin• Insulin • glucose enters muscles • fat metabolism • in Ketones • acidosis reversed
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Prevention of DKA
• #1 cause of DKA?– Illness
• Sick Day Rules
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Sick Day Protocol/Rules
• Never omit insulin• If you are unable to eat normally, DO NOT
stop taking insulin• Sliding scale• Test blood sugar every 3-4 hours• Test urine for ketones every 3-4 hours• Take liquid/fluids q hour
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Sick Day Protocol/Rules
• If you can not eat your usual meal, substitute soft foods
• Have “sick day” food in house• If vomiting, diarrhea or fever persists, take
liquids q half hour• If miss or replace 4 meals with fluids, call MD
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Sick Day Protocol/Rules
• Go to bed and keep warm• Friends: good to have someone around who
understands and knows about insulin reactions and diabetes
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Hyperglycemia Hyperosmolar Nonketonic Syndrome - HHNK
• Definition– HHNK occurs when there is insufficient insulin to
prevent hyperglycemia, but there is enough insulin to prevent Ketoacidosis
– Occurs in all types of diabetes
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Hyperglycemia Hyperosmolar Nonketonic Syndrome - HHNK
• Etiology– Overeating– Stress– Illness– Too little insulin
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S&S of HHNK syndrome
• Polyuria• Polydipsia• Polyphagia• Skin, hot, dry, decreased
turgor• Dehydration• Seizures• Blurred vision• Weakness
• Headache• Mental status changes • Lab values: FSBS 600 –
2,000 mg/dl• Serum osmolality • Urine neg. for ketone
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Medical Management/treatment
• Confirm with glucose meter• If greater than 300 mg/dl check urine for
ketones• Fluid and electrolyte replacement– Especially K+
• Insulin• Treat precipitating factors
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Nursing Responsibility
• Same as with DKA– Insulin– Hydration– Electrolyte replacement and monitoring– Treat underlying cause
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Summary
• Acute complications of DM– Hypoglycemia– Diabetic Ketoacidosis– Hyperglycemia Hyperosmolar Non-ketonic
Syndrome