Vitamin D Flashcards
1
Q
Vitamin D
Sources
A
Not present in food naturally
Fortified foods
2
Q
Vitamin D
Function
A
Metabolism of Calcium (Ca is responsible for cell stabilization)
Metabolism of Phosphate
Parathyroid Hormone Production (which are responsible for demineralizing bone, and maintaining calcium levels)
Bones
3
Q
Vitamin D
Deficiency Causes
A
Malabsorption
Increased with w/ darker skin
Inadequate sun exposure
Vegan/Vegetarians who don’t drink fortified milk
4
Q
Vitamin D
Deficiency Symptoms
A
Hypocalcemia which causes: Irritability Jittery Fatigue Wheezing Muscle cramps Seizures
Osteomalacia in adults
Rickets in children
5
Q
Vitamin D
Toxicity Causes
A
Excess is rare b/c not found in food naturally
Usually kids getting into vitamins
6
Q
Vitamin D
Toxicity Symptoms
A
Hypercalcemia: Polydipsia (thirst) Polyuria Dehydration Lethargy Fatigue Hypotonia Disorientation Coma Nausea Vomiting Constipation Abdominal Pain HTN Arrythmias Nephrolithiasis (stones)
7
Q
Vitamin D
Deficiency- Rickets
A
Common in underdeveloped Skeletal malformations Bow-legged Scoliosis Soft Skull Hyperplasia of growth plate Dental problems Muscle weakness Hypocalcemia
