Chapter 20- Endocrine Flashcards
S/S type 1 DM
- polydipsia
(intracell dehydration, hypothalamus increases thirst) - polyuria
(high BS= osmotic diuretic; glucose in urine) - polyphagia
(cell starvation) - weight loss
(protein/fat energy, osmotic diuresis/fluid loss) - fatigue
(metabolic change, poor use food) - recurrent infection
(high sugar, ischemia, neuropathy) - prolonged wound healing
(impaired blood supply) - genital pruritus
(fungal growth high BS) - visual changes
(water balance r/t high BS, microvascular) - paresthesia
(neuropathy) - cardiovascular sx
(chest pain, extremity pain, neuro deficit d/t
atherosclerotic plaques)
Clinical findings DM 1 & 2
- HbA1c > 6.5%
- FPG > 126
- 2hr plasma > 200 oral glucose test
- Sx and random glucose > 200
- glucose in urine
- low C peptide in DM1 sometimes 2 (means low insulin)
Patho of DM1
- autoimmune- destroys beta cells
- lack of insulin
- decreased amylin
- excessive glucagon
Antibody type 1 DM
ZnT8Ab
Genetic disease
Risk factors DM2
- > 40 y/o
- african american/native american
- obesity
- HTN
- poor diet
- poor exercise
- genetics
- insulin resistance
- dyslipidemia
Patho DM 2
- obesity > hyperinsulunemia > insulin resistance
- low amylin, high glucagon
- low ghrelin (GI)
- low incretins (GI)
- renal absorption glucose (block to treat)
S/S DM 2
- nonspecific
- fatigue
- pruritus
- recurrent infection
- vision change
- neuropathy
- maybe polydipsia & polyuria
S/S metabolic syndrome (risk DM)
- increased weight circumference/central obesity
- triglycerides > 150
- HDL < 40 (men) < 50 (women)
- SPB >130 DBP > 85
- FPG > 100
Quick facts gestational DM
- 2nd/3rd trimester
- no previous h/o DM
- monitored postpartum Q3yrs
Maturity-onset diabetes of youth (MODY)
- < 25 y/o
- genetic
- neonatal DM
- atypical presentation
Acute complications of DM
- hypoglycemia (more risk DM1 d/t insulin tx)
- DKA (DM1)
- Hyperosmolar hyperglycemic nonketotic syndrome (DM2)
Sx HYPOglycemia
- pallor
- tremor
- anxiety
- tachycardia
- palpitations
- diaphoresis
- HA
- dizzy
- irritable
- fatigue
- poor judgement, confusion
- visual disturb
- hunger
- seizures/coma
Patho/clinical DKA
*Low insulin= breaking down fat too quickly > fatty acid increase to liver > stimulates:
1. low insulin, high catecholamines, cortisol, glucagon
2. HYPERglycemia
3. ketonuria
4. metabolic acidosis
5. hyperkalemia
S/S DKA
- Kussmaul respirations (hypervent)
- postural dizzy
- CNS depression
- ketonuria
- anorexia/weight loss
- n/v
- abdominal pain
- thirst
- dry mouth
- fruity/acetone breath
- HA
S/S hyperglycemic nonketotic syndromes
High glucose WITHOUT metabolic acidosis
1. polyuria
2. polydipsia
3. hypovolemia/dehydration (turgor, lips)
4. hypotension
5. tachycardia
6. n/v/abdominal pain
7. weakness
8. hypothermia
9. stupor/coma/seizure
3 Microvascular diseases DM
- diabetic retinopathy
(leading cause blindness) & macular edema (blurry/loss
vision) - diabetic nephropathy
(DM most common CKD/ESRD; glomerular damage) - Diabetic neuropathy
(most common; ischemia & demyelination)