Thyroid testing: Chemical messengers

Article Abstract:

The thyroid gland produces two main hormones that circulate in the blood called thyroxine (T-4) and triiodothyronine (T-3) which are chemical messengers that influence metabolic rate, body temperature, muscle strength, heart rate, cholesterol levels and even mood. The problems with thyroid gland activity can be detected by a blood test for the thyroid-stimulating hormone (TSH) and the disorders include underactive thyroid (hypothyroidism), overactive thyroid (hyperthyroidism), thyroid enlargement (goiter or nodule) and thyroid tumors.

Diagnosis, Risk factors, Thyroid diseases

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Blood donation: a much needed gift

Article Abstract:

Donation of one unit or one pint of blood may help up to four people. Blood transfusions will be needed by more than 4 million Americans this year.

Analysis, Planning, Directed blood donations, Blood collection and preservation

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Bone and joint infections

Article Abstract:

Bone and joint infections may be debilitating if not treated.

Infection, Bones, Joints, Injuries, Abnormalities, Joints (Anatomy)

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