NaturDoctor.com

Natural Health Research

Naturopathic Medicine
Books
Health Quizzes
Library
About

Calcium, Ca


Metabolism
Calcium is mainly absorbed in the duodenum. Increased absorption in acid environments
high levels increase PTH
PTH decreases absorption and increases bone deposition
low levels increase calcitonin
calcitonin stimulates hydroxylation of 25 HCC into 24,25 DHCC

Functions
calcium ions add hardness to the bone matrix
calcium aids transport across cell membranes for muscle contraction
ionized calcium initiates formation of blood clotting
stimulates the release of thromboplastin from platelets
cofactor in the conversion of prothrombin to thrombin
calcium maintains proper contractility of smooth and skeletal muscle

Requirements
RDA - adults - 800 mg, teenagers - 1200 mg
children - 700 mg, infants - 400 mg

Sources
cheese

Interactions
Thyroid - excessive thyroid hormone causes excess excretion
Digoxin - may exacerbate toxicity if given without magnesium
Tetracyclines - inhibit calcium absorption and vice versa
Corticosteroids - cause osteoporosis and calcium loss
Aluminum - calcium reduces aluminum absorption

Hypocalcemia
Signs - abdominal and muscular cramps
muscle spasm and tetany, particularly in the legs
circumoral tingling, especially in the fingers
convulsions
Symptoms
Trousseau sign: carpal spasm induced by occluding brachial artery
Chovstek sign: facial muscle contraction induced by tapping facial nerve
Complications
osteoporosis, osteomalacia
Etiology
acute pancreatitis, chronic renal insufficiency, burns
removal of parathyroid glands
malabsorption syndrome


Hypercalcemia
Etiology
excessive intake of vitamin D (milk)
hypothyroidism, thyrtoxicosis, parathyroid neoplasm
immobilization
Paget's disease
Signs
anorexia, nausea
lethargy, weight loss, polydypsia, polyuria
flank pain, bone pain, decreased muscle tone
Toxicity
contraindicated in asthma due to phospholipase A2 potentiation
may cause kidney stones (except citrate form)
Rx
sodium salts IV and diuretics (Lasix)


Therapeutics
EENT
periodontal disease
Musculoskeletal
osteoporosis - adds hardness to the bone matrix
restless leg, arthritis
Cardiac
hypertension - particularly for salt-sensitive people
hypercholesterolemia - lowers cholesterol
Urology
calcium oxylate stones - binds to oxalate, decreases urinary oxalate
Neurology
insomnia, anxiety, hyperactivity, depression
Oncology
prevention of colon cancer
Hematology
blood clotting disorders - initiates formation of blood clotting
Misc
aluminum toxicity - PTH increases uptake of aluminum
lead toxicity


Sources
Marz
DeGowin, pg 766
Smith, NCLEX Review, pg 229

 

 

 

Fantastic new books!

Complementary and Alternative Medical Lab Testing is chock full of references for over 100 diseases.

Nutritional Genetics is also a referenced resource with sections on over 100 diseases.

Great Health Quotes has wonderful quotations about health, healing, disease, doctors, and medicine, and it's FREE.

A Brief Introduction to Naturopathy and Naturopathic Medicine describes the history and modalities. It's also FREE.

 


Research

Natural Health

Vitamins

Diseases

Drugs

Links

 

 

 

 

 


NaturDoctor.com

Information on this site is provided for informational purposes only and is not meant to substitute for the advice provided by your own physician or other medical professional. You should not use the information contained herein for diagnosing or treating a health problem or disease, or prescribing any medication. If you have or suspect that you have a medical problem, promptly contact your health care provider. Information and statements on this site have not been evaluated by the Food and Drug Administration.

©