When blood is exposed to air, it clots. Heparin allows the blood to come in direct contact with air without clotting.
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Colchicine is a highly poisonous alkaloid originally extracted from a type of saffron plant that is used mainly to treat gout.
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Blood in the urine can be a sign of a kidney stone, glomerulonephritis, or other kidney problems.
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Though the United States has largely rejected the metric system, it is used for currency, as in 100 pennies = 1 dollar. Previously, the British currency system was used, with measurements such as 12 pence to the shilling, and 20 shillings to the pound.
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Fatal fungal infections may be able to resist newer antifungal drugs. Globally, fungal infections are often fatal due to the lack of access to multiple antifungals, which may be required to be utilized in combination. Single antifungals may not be enough to stop a fungal infection from causing the death of a patient.
Conduction system of the heart.
An ECG strip showing a normal sinus rhythm with the P wave, QRS complex, and T wave identified.
heart
Total Fertility Rate in Japan: Actual versus Forecast
Total Fertility Rate in the United States, 1860–2008