Zusammenfassung der Ressource
Calcium
- Hypercalcemia
- Causes
- HyperParathyroidism
- Malignancies
- Prolonged
Immobilization
- Vitamin D
overdose or
Excessive Ca+
intake
- Signs & Symptoms
Anmerkungen:
- Reduced Excitability of Both Muscles & Nerves
- Lethary, Weakness
- Depressed reflexes
- Decreased Memory
- Polyuria/dehydration
- Confusion,
Personality
Changes or
Pychosis
- Anorexia, N&V
- Bone Fractures
- Constipation
- Heart Block Risk
- Interventions
- Loop Diuretics
- Hydrate with Isotonic Fluids
- 3000-4000ml to
prevent kidney
stone & promote
renal excretion
- low Ca+ diet
& Weight
Bearing
excercise
- Calcitonin
(IM/IV)
Nasal not
effective
- Biphosphonate (Zoledronic Acid)
- Hypocalcemia
- Causes
- Low
Albumin
Levels
- Alkalosis
(symptomatic
hypocalcemia)
- Multiple blood
Transfusions
(citrate used to
anticoagulate
binds w/ Ca+)
- Laxatives or Malabsorptive syndromes
- Acute Pancreatitis
- Increased
intake of
phosphorus
antacids
- Vitamin D
deficiency,
Decreased Ca+
intake
- Signs & Symptoms
- chvotek's sign
- Twitching of the
cheek occurs in
response to
tapping over the
facial nerve
- Trousseau's sign
- Carpal spasm of the
hand develops when BP
cuff is inflated above the
systolic Pressure
- Hyperflexia
- Tetany
- Numbness, & tingling of
the nose/ears/fingertips
(it may progress to
muscle spasm or
convulsion
- Hypomagnesium
- Larygeal Spasm w/ Stridor
- Arrythmias
(decreased
Contractility)
- Dysphagia
- Intervention
- IV Calcium
Gluconate
(0.5-1ml)
- Monitor Skin
(Tissue
Necrosis)
- Diet of Ca+ Rich
foods/ or Oral
Supplement
- Breath into paper
bag (to control
muscle spasm)
- Monitor
for
Dysrhythmias
- May need Mg
- Seizure Precautions
- 8.6- 10.2mg/dL
- 1200g in the body
- 3 forms
- Bound to Plasma
- Ionized Free
- Decrease pH
Acidosis decreases
ca+ binding to
Albumin
- Alkalosis increases ca+
binding to Albumin
(Decrease Ionized Ca+)
- Bound to
phosphate, citrate
or Carbonate
- Controlled by: PTH & Calcitonin