When you have your blood pressure taken, you will see 2 numbers. Diastolic pressure is the lower number and systolic pressure is the higher number. The diastolic number represents the pressure exerted by the blood on the walls of your arteries between heartbeats.

The first couple of hours following surgery is a critical time period. As a person begins to recover from anesthesia and surgery, changes in blood pressure are common. Blood pressure -- the outward force exerted by blood against the walls of blood vessels -- may be either higher or lower than normal.

Folate and B-12 are members of the B vitamin family, and they help your body produce red blood cells. If you don’t get enough folate or vitamin B-12, you may become anemic and your blood pressure may drop to below-normal levels. You can treat deficiencies with changes in your diet or vitamin B supplements.

Anemia is caused by have a low red blood cell count. Red blood cells, or RBCs, contain a protein called hemoglobin, which carries oxygen to the different tissues of the body. The amount of oxygen that is supplied to the different tissues depends on the amount of RBCs present in the body.

Serotonin is a neurotransmitter that has numerous physiological functions in the central nervous system. It is made from l-tryptophan, an essential amino acid found in many protein foods.

Vasoconstrictor drugs cause contraction of muscle cells in the walls of blood vessels, narrowing their internal diameter and raising blood pressure. This effect makes these medications useful for the treatment of low blood pressure, typically in an intensive care or surgical setting.

Low blood pressure is also known as hypotension. While low blood pressure in adults is a wellness goal, in children, lower-than-normal pressure can be dangerous. Hypotension may occur for a variety of reasons. On one end of the spectrum are relatively mild, reversible causes of hypotension such as dehydration.

Ginger tea is dried and powdered or grated fresh ginger steeped in hot water for approximately 10 minutes. It has a slightly sweet, but distinctly spicy flavor that appears otherwise delicate. There are several medicinal uses for ginger tea, although there is more evidence for some than for others.

Blood pressure is the force of blood against your artery walls, and it often fluctuates throughout the day. When blood pressure remains high for a sustained period of time, it is called high blood pressure or hypertension. Hypertension forces the heart to work hard, increasing your risk of stroke and heart disease.

Blood pressure refers to the force exerted by blood circulating into the blood vessels. Low blood pressure, also called hypotension, is when the flow of blood is lower than normal and may prevent the proper amount of oxygen and nutrients from pumped to the vital organs.

Antibiotics are prescribed for a variety of bacterial infections in every part of the body. Antibiotics are known to produce side effects in the intestines, causing concern that they have lowered the amount of acid in the stomach; however, that is not the problem.

C-reactive protein, or CRP, is a complex set of proteins produced by the liver. Your body makes more CRP when a major infection or trauma occurs in any area affecting the immune system. Along with an underlying medical cause, lifestyle habits and genetics regulate the amount of CRP produced.