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Table 6-28

HypoglycemiaKetoacidosis
Pathophysiology Major metabolic complication when too little food or too-large dose of insulin or hypoglycemic agents administered; interferes with oxygen consumption of nervous tissueMajor metabolic complication in which there is insufficient insulin for metabolism of carbohydrates, fats, and proteins; seen most frequently with clients who are insulin dependent; precipitated in the person with known diabetes by stressors (such as infection, trauma, major illness) that increase insulin needs
Risk factors Too little food
Emotional or added stress
Vomiting or diarrhea
Added exercise
Insufficient insulin or oral hypoglycemics
Noncompliance with dietary instructions
Major illness/infections
Therapy with steroid administration
Trauma, surgery
Elevated blood sugar: >200 mg/dL
Assessment Behavioral change:
  • Subjective data—nervous, irritable, anxious, confused, disoriented
  • Objective data—abrupt mood changes, psychosis
Visual:
  • Subjective data—blurred vision, diplopia
  • Objective data—dilated pupils
Skin: Objective data—diaphoresis, pale, cool, clammy, goosebumps (piloerection), tenting
Vitals: Subjective data—palpitations
Gastrointestinal:
Subjective data—hunger, nausea
Objective data—diarrhea, vomiting
Neurological:
  • Subjective data—headache; lips/tongue: tingling, numbness
  • Objective data—fainting, yawning; speech: incoherent; convulsions; coma
Musculoskeletal:
  • Subjective data—weak, fatigue
  • Objective data—trembling
Blood sugar: <80 mg/dL
Behavioral change:
  • Subjective data—irritable, confused
  • Objective data—drowsy
Visual:
  • Objective data—eyeballs: soft, sunken
Skin: Objective data—loss of turgor, flushed face, pruritus vulvae
Vitals: Objective data—tachycardia; thready; respirations: Kussmaul’s; BP: hypovolemic shock
Gastrointestinal:
  • Subjective data—increased thirst and hunger, abdominal pain, nausea
  • Objective data—vomiting, diarrhea, dry mucous membrane; lips, tongue: red, parched; breath: fruity
Neurological:
  • Subjective data—headache; irritability; confusion; lethargy, weakness
Musculoskeletal
  • Subjective data—fatigue; general malaise
Renal: Objective data—polyuria
Blood sugar: >130 mg/dL
Analysis/nursing diagnosis Risk for injury related to deficit of needed glucose
Knowledge deficit (learning need) related to proper dietary intake or proper insulin dosage
Altered nutrition, less than body requirements, related to glucose deficiency
Risk for injury related to glucose imbalance
Knowledge deficit (learning need) related to proper balance of diet and insulin dosage
Nursing care plan/implementation Goal: provide adequate glucose to reverse hypoglycemia: administer simple sugar STAT, PO or IV, glucose paste absorbed in mucous membrane; monitor blood sugar levels; identify events leading to complication
Goal: health teaching: how to prevent further episodes (see I. DIABETES, Health Teaching, Physiological Integrity); importance of careful monitoring of balance between glucose levels and insulin dosage
pillImageGoal: promote normal balance of food and insulin: regular insulin as ordered; IV saline, as ordered; bicarbonate and electrolyte replacements, as ordered; potassium replacements once therapy begins and urine output is adequate
Goal: health teaching: diet instructions, desired effects and side effects of prescribed insulin or hypoglycemic agent (onset, peak, and duration of action); importance of recognizing signs of imbalance
Evaluation/outcome criteria Adheres to diet and correct insulin dosage
Adjusts dosage when activity is increased
Glucose level: 80–120 mg/dL
Accepts prescribed diet
Takes medication (correct dose and time)
Serious complications avoided
Glucose level: 80–120 mg/dL