Acute complications of Diabetes Flashcards
Manifestations of hyperglycemia
Elevated blood glucose Increased urination Increased appetite Weakness, fatigue Blurred vision Mood swings N/V; headache
Causes of hyperglycemia
i. Illness, infection
ii. Corticosteroids
iii. Too much food
iv. Too little or no diabetes meds
v. Inactivity
vi. Emotional or physical stress
vii. Poor absorption of insulin
Treatment
Medical care
Continue diabetic meds
Check BG & Urine Ketones
Drink fluids
Caused by profound deficiency of insulin
Diabetic Ketoacidosis (DKA) type 1
DKA characterized by
i. Hyperglycemia
ii. Ketosis (body burns fat for energy)
iii. Acidosis
iv. Dehydration
DKA precipitating factors
i. Illness
ii. Infection
iii. Inadequate insulin dosage
iv. Undiagnosed type 1 diabetes
v. Lack of education, understanding, or resources
vi. Neglect
W/O treatment of DKA
i. Severe depletion of sodium, potassium, chloride, magnesium, and phosphate
ii. Acidosis -> vomiting and further fluid and electrolyte losses
iii. Elevation of BS-greater than 300, ketoacidosis; electrolyte imbalance (leads to dehydration)
Hypovolemia followed by shock can cause
renal failure; causing mention of ketones & glucose; further acidosis
DKA clinical manifestations
Dehydration
Early: Lethargy & weakness
DKA s/s
- Skin dry and loose; eyes soft and sunken
- Abdominal pain, anorexia, nausea/vomiting
- Kussmaul respirations
- Sweet, fruity breath odor (acetone)
Emergency management DKA: first
ensure pt airway; administer O2
Emergency management DKA: second
Establish IV access; fluid replacement
Protect from what with emergency treatment of DKA
Cerebral edema
monitor fluid overload
Monitor/ replace K before starting insulin therapy
to correct hyperglycemia and ketosis
IV regular insulin drop 0.1 U/kg/hr
a. Life-threatening syndrome; less common than DKA; b. No breakdown of fat; no acidosis; type 2 diabetes
Hyperosmoler Hypegylcemia Syndrome (HHS)
i. Able to make enough insulin to prevent DKA but still have severe hyperglycemia, osmotic diuresis, and ECF depletion
HHS
Common causes of HHS
i. UTIs, pneumonia, sepsis (infection)
ii. Acute illness
iii. Newly diagnosed type 2 diabetes
iv. Impaired thirst sensation and/or inability to replace fluids
First step for treatment of HHS
More fluid replacement
Second step for treatment of HHS
IV insulin infusion
Monitor what with HHS
Fluid; electrolytes (K*), serum osmolality
DKA/HHS management monitor
BG Urine output & ketones IV fluids Insulin therapy Electrolytes, K
DKA/HHS management Assess
Renal status
Cardiopulmonary status
LOC
b. Blood glucose level < 70 mg/dL
Hypoglycemia
Hypoglycemia causes
i. Alcohol intake without food
ii. Too much insulin or oral hypoglycemic agents
iii. Too little food
iv. Delaying time of eating
v. Too much exercise
Hypoglycemia manifestations
Cool, clammy skin Numbness Tachycarida Nervousness, tremors Hunger Vision changes
Altered mental function— “neuroglycopenia”
i. Difficulty speaking
ii. Visual disturbances
iii. Stupor
iv. Confusion
v. Coma
Treatment of Hypo
Rule of 15
low: 15 g of carb
Wait 15 min check, glucose
IF BG is less than 70 after giving 15 g carb
Eat or drink another 15 g
iii. If stable and meal more than 1 hour away or involved in an activity
Give carb or protein (peanut butter crackers; slice of cheese
If glucose remains low after 2 to 3 times
Call HCP or EMS
Treatment in acute care settings
50% dextrose 20 to 50 mL IV push; if they are not alert enough to swallow
Avoid what with treatment of hypoglycemia
fat type carbs; cookies; milk- delays response to action
Preventative measures
i. Take meds as prescribed on time
ii. Accurately administer insulin, noninsulin injectables or OAs
iii. Coordinate eating with meds
iv. Eat adequate food as needed with exercise
v. Recognize and treat symptoms and teach family/caregiver
vi. Carry simple carbohydrates
vii. Wear or carry diabetes ID
a. No warning signs/symptoms until glucose level critically low
i. Incoherent, combative, loss of consciousness
Hypoglycemia unawareness
DKA labs Blood glucose blood pH Serum bicarbonate Ketones
- Blood glucose level of greater than or equal to 250 mg/dL
- Blood pH lower than 7.30
- Serum bicarbonate level less than 16 mEq/L
- Moderate to high ketone levels in urine or serum