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Did you know?

Sildenafil (Viagra®) has two actions that may be of consequence in patients with heart disease. It can lower the blood pressure, and it can interact with nitrates. It should never be used in patients who are taking nitrates.

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Patients who cannot swallow may receive nutrition via a parenteral route—usually, a catheter is inserted through the chest into a large vein going into the heart.

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After a vasectomy, it takes about 12 ejaculations to clear out sperm that were already beyond the blocked area.

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The ratio of hydrogen atoms to oxygen in water (H2O) is 2:1.

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Amoebae are the simplest type of protozoans, and are characterized by a feeding and dividing trophozoite stage that moves by temporary extensions called pseudopodia or false feet.

Urinary catheterization. The procedure involves the insertion of a flexible tube, or catheter, throu Urinary catheterization. The procedure involves the insertion of a flexible tube, or catheter, throu
Selected Drugs for Glaucoma Selected Drugs for Glaucoma
Splash blending occurs when the ethanol is added to a tanker with gasoline and is mixed as the ... Splash blending occurs when the ethanol is added to a tanker with gasoline and is mixed as the ...
The transition between steps usually occurs at a temperature that would not interfere with cold ... The transition between steps usually occurs at a temperature that would not interfere with cold ...
Energy radiated by substances occurs over a wide range of wavelengths. Energy radiated by substances occurs over a wide range of wavelengths.
Acute glaucoma Acute glaucoma
Video: Anatomy and Chemical Makeup of a Single Hair (Animation)

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