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Calcium
Pharm
92
Medical
Kindergarten
04/27/2010

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Cards

Term
What are the 2 Bisphosphonates?
Definition
Alendronate and Pamidronate
Term
What is Raloxifene?
Definition
Partial Estrogen Agonist
Term
What is Predinisone?
Definition
Corticosteroid
Term
What is the parathyroid hormone like drug?
Definition
Teriparatide
Term
Is calcium tightly regulated both intra and extra cellularly?
Definition
Yes
Term
What is the average PLASMA level of Ca?
Definition
2.5mM Ca
Term
What is the average CYTOPLASMIC level of Ca?
Definition
100 nM Ca
Term
What locations in the body is Calcium exchange hormonally controlled?
Definition
Intestines, Bone, and Kidneys
Term
How much calcium is absprbed in the Intestines Daily?
Definition
1000-1200 mg Ca
Term
What is the average in take of Ca for the Average American Daily?
Definition
800 mg Ca
Term
What hormone dictates how much Ca is absorbed in the Intestines?
Definition
Vitamin D
Term
What is the average flux of calcium in and out of Bone Daily?
Definition
300 mg Ca per day
Term
How much Calcium is filtered Daily in the kidneys? How much is reabsorbed?
Definition
9000 mg filtered with 8850 mg Ca reabsorbed
Term
Where in the Intestines is Calcium Absorbed?
Definition
Proximal Small Intestines (Active Process)
Term
What hormone stimulates Intestinal Calcium absorption?
Definition
Vitamin D
Term
What hormone inhibits Intestinal Calcium Absorption?
Definition
Glucocorticoids
Term
Where in the Kidney does Calcium absorption occur?
Definition
Proximal Tubule (Active Process)
Term
What hormone stimulates Calcium Absorption in the Kidneys?
Definition
Parathyroid Hormone
Term
What can lead to decreased Renal Calcium Clearance?
Definition
Thiazide Diuretics such as Hydrochlorothiazide
Term
What drugs can lead to hypercalcemia?
Definition
Thiazide Diuretics due to Decreased Clearance
Term
What drug can lead to increased Renal Calcium Clearance?
Definition
Loop Diuretics such as Furosemide
Term
What can Furosemide and other Loop Diuretics lead to?
Definition
Hypocalcemia
Term
What does parathyroid hormone stimulate in the Bone to increase calcium?
Definition
Osteoclast Activity
Term
What hormones can inhibit Osteoclast activity leading to decreased plasma Calcium?
Definition
Calcitonin and Estrogen
Term
What is stimulated in order to increase Bone Mineralization?
Definition
Osteoblast Activity to Build Bone
Term
What stimulates bone mineralization?
Definition
Sodium Flouride, Calcium, and Teraparatide
Term
What does tereparatide stimulate?
Definition
Osteoblast activity so Bone Mineralization
Term
If Plasma Calcium levels get too low what is triggered?
Definition
Secretion of PTH
Term
What does PTH trigger?
Definition
Stimulates Osteoclasts, Increases Kidney Reabsorption, and Activates Vitamin D
Term
What effect does PTH have on Vitamin D?
Definition
It actually activates the final step in the formation of VItamin D
Term
If Plasma Calcium Levels get too high what is triggered?
Definition
Signals C cells of Thyroid to secrete Calcitonin
Term
What is the main action of Calcitonin?
Definition
Decrease Osteoclast Activity leading to more deposition of Calcium into Bone
Term
How many amino acids are in Parathyroid Hormone?
Definition
64 Amino Acids
Term
What stimulates the release of PTH?
Definition
Low Calcium Levels
Term
How many amino acids make up Calcitonin?
Definition
32 amino acids
Term
Where is Calcitonin made?
Definition
C cells of the Thyroid
Term
What stimulates Calcitonin release?
Definition
High Plasma Calcium Levels
Term
What are the two activities of Vitamin D?
Definition
Increases Intestinal Absorption of Calcium and Increases Bone Mineralization
Term
What is needed to stimulate the conversion of 7-dehydrocholesterol to Vitamin D3?
Definition
Sunlight/UV light
Term
What is D3 then converted to in the liver?
Definition
25-hydroxyvitamin D3 by 25 Hydroxylase
Term
What is 25-hydroxyvitamin D3 converted to?
Definition
1,25 Dihydroxyvitamin D3 (Calcitriol) which is the active form
Term
What is the effect of Estrogen on Calcium Regulation?
Definition
Reduces PTH effects on bone
Term
What inhibits the action of VItamin D?
Definition
Glucocorticoids
Term
What can lead to hypercalcemia?
Definition
Hyperparathyroidism, Malignancies that make PTH, Vitamin D Toxicity
Term
What are the 6 treatments for Hypercalcemia?
Definition
Saline DIuresis, Loop Diuretics, Calicitonin, Corticosteroids, Gallium Nitrate, and Bisphosphonates
Term
What is the mechanism of action of Saline diuresis in the treatment of hypercalcemia?
Definition
Promotes volume expansion and decreased concentration of Ca, followed by loop diuretics
Term
Is Calcitonin more of an acute or chronic treatment plan?
Definition
Chronic
Term
What are the two types of Calcitonin available?
Definition
Human and Salmon (10x more Potent)
Term
Is Calcitonin orally active?
Definition
No its a Peptide
Term
How is Calcitonin usually administered?
Definition
Intranasally
Term
What is the problem with using Salmon Calcitonin?
Definition
We make Antibodies to it
Term
Why is Calcitonin not typically a useful treatment?
Definition
PTH and Vitamin D are more active and Calcitonin isnt very effective
Term
What happens to Calcium levels in patients with C cell Carcinomas producing 1000x the normal amount?
Definition
They retain normal Calcium Levels
Term
What is typically used to treat Vitamin D toxicity?
Definition
Corticosteroids, they inhibit Vitamin D in the Intestines
Term
What is the effect of Gallium Nitrate?
Definition
Used to Treat Hypercalcemia, Inhibits Osteoclast Activity
Term
What are the Bisphosphonates?
Definition
Alendronate, Pamidronate, Zoledronate, and Etridronate
Term
What drugs end in "dronate"?
Definition
Bisphosphonates
Term
What other than Hypercalcemia are Bisphosphonates used to treat?
Definition
Pagets Disease
Term
How do Bisphosphonates work to treat hypercalcemia?
Definition
Inhibit Osteoclast Activity
Term
What are some causes of Hypocalcemia?
Definition
Hypoparathyroidism and Vit D Deficiency
Term
What can cause tetany
Definition
convulsions, and muscle cramps?,Hypocalcemia
Term
What is used to treat Hypocalcemia?
Definition
Calcium Salts and Vitamin D
Term
What is used acutely to treat Hypocalcemia?
Definition
10% Calcium Chloride or Calcium Gluconate IV
Term
What calcitriol?
Definition
Active Vitamin D used to treat Hypocalcemia
Term
What is Pagets Disease?
Definition
Disordered Bone remodeling due to Increased Number and Activity of Osteoclasts
Term
What diease has Weak Bones
Definition
Arthritis, Deafness, and Elevated Serum Alkaline Phosphatase?,Pagets Disease
Term
What is used to treat Pagets DIsease?
Definition
Calcitonin and Bisphosphonates
Term
What are Bisphosphonates structurall similar to?
Definition
Pyrophosphate
Term
What is the activity of Bisphosphonates?
Definition
Adsord to Bone Crystal Surface and Inhibit Osteoclastic Activity
Term
Are Bisphosphonates easily absorbed orally?
Definition
No only 10%
Term
What drug can cause esophagitis?
Definition
Bisphosphonates orally
Term
High doses of Bisphosphonates can cause?
Definition
Jaw Osteonecrosis
Term
What can be done to reduce the potential for Esophagitis when taking oral Bisphosphonates?
Definition
Standing and Drinking Large Glass of Water when taking the Drug
Term
What is the new protocol for effective Bisphosphonate administration by IV?
Definition
Can be given only once a Year
Term
What is used to treat hypercalcemia
Definition
Pagets Disease, and Osteoporosis?,Bisphosphonates
Term
What are some risk factors in Osteoporosis?
Definition
Negative Calcium Balance, estrogen deficiency,
Term
reduced vitamin D
Definition
reduced exercise, slight build, smoking, corticosteroids
Term
reduced vitamin D
Definition
reduced exercise, slight build, smoking, corticosteroids
Term
include negative calcium balance
Definition
estrogen deficiency,
Term
reduced vitamin D
Definition
reduced exercise, slight build, smoking, corticosteroids
Term
include negative calcium balance
Definition
estrogen deficiency,
Term
reduced vitamin D
Definition
reduced exercise, slight build, smoking, corticosteroids
Term
Negative Calcium Balance
Definition
Estrogen Def. (Postmenopausal), Reduced Vit D, Reduced Exercise, Small Build, Smoking, and Corticosteroid Use
Term
What drugs are used to treat osteoporosis?
Definition
Bisphosphonates, Raloxifene, Estrogen Patch, Teriparatide, Calcitonin, VItamin D, and Calcium
Term
What is the MOA of Raloxifene?
Definition
Partial Estrogen Agonist
Term
What are some negtive side effects of Low Dose Estrogren Patch?
Definition
Could Cause Breast Cancer or Stroke
Term
What is the MOA of Estrogen against Osteoporosis?
Definition
Inhibits PTHs effects on bone
Term
What is the MOA of Teriparatide?
Definition
It is the first 34 AAs of PTH but Causes bone formation
Term
What is the worst side effect of Teriparatide?
Definition
Expensive
Term
How is Teriparatide Administered?
Definition
Once Daily
Term
A patient with prostate cancer is given Iuprolide to Chemically Castrate
Definition
which leads to increased Risk of Bone loss, what is he prescribed?,Calcitonin intranasally, Vit D supplement, and Bisphosphanates
Term
Aunt Rose is a postmenopausal woman
Definition
who has been encouraged by her gynecologist to take multivitamins containing Vitamin D. Vitamin D is beneficial for postmenopausal women bcause it:,Increases the Synthesis of an Intestinal Calcium-Binding Protein
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