<unk>  is low blood pressure. Blood pressure is the force of blood pushing against the walls of the arteries as the heart pumps out blood. Blood pressure is indicated by two numbers, the systolic blood pressure (the top number) and the diastolic blood pressure (the bottom number), which are the maximum and minimum blood pressures, respectively. A systolic blood pressure of less than 90 millimeters of mercury (mm Hg) or diastolic of less than 60 mm Hg is generally considered to be<unk> . Different numbers apply to children. However, in practice, blood pressure is considered too low only if noticeable symptoms are present.<unk>  is the opposite of hypertension, which is high blood pressure. It is best understood as a physiological state rather than a disease. Severely low blood pressure can deprive the brain and other vital organs of oxygen and nutrients, leading to a life-threatening condition called<unk> ock.<unk> ock is classified based on the underlying cause, including hypovolemic<unk> ock, cardiogenic<unk> ock, distributive<unk> ock, and obstructive<unk> ock.<unk>  can be caused by excessive exercise, excessive heat, low blood volume (hypovolemia), hormonal changes, widening of blood vessels, anemia, a lack of vitamin B12 and folic acid, anaphylaxis, heart problems, or endocrine problems. Some medications can also lead to<unk> . There are also syndromes that can cause<unk>  in patients including orthostatic<unk> , vasovagal syncope, and other rarer conditions. For many people, excessively low blood pressure can cause dizziness and fainting or indicate serious heart, endocrine or neurological disorders. For some people who exercise and are in top physical condition, low blood pressure could be normal. A single session of exercise can induce<unk>  and water-based exercise can induce a hypotensive response. Treatment of<unk>  may include the use of intravenous fluids or vasopressors. When using vasopressors, trying to achieve a mean arterial pressure (MAP) of greater than 70 mm Hg does not appear to result in better outcomes than trying to achieve a MAP of greater than 65 mm Hg in adults.
Hypotension
Bradypnea
Bradycardia
Apnea
Hypopnea
Sedation
Hypsarrhythmia
Somnolence