In North America, the DSM-IV or DSM-5 criteria are often used for diagnosis, while European countries usually use the ICD-10. With the DSM-IV criteria a diagnosis of ADHD is 3â4 times more likely than with the ICD-10 criteria. It is classified as neurodevelopmental psychiatric disorder.
In orthostatic hypotension, the blood pressure drops when the body is in an upright standing position, as compared to a reclining position. Sometimes the sudden dip causes a brief dizzy spell or head rush. In severe cases it may cause a person to faint. âSometimes people can have it and not feel a thing,â Jones says.n orthostatic hypotension, the blood pressure drops when the body is in an upright standing position, as compared to a reclining position. Sometimes the sudden dip causes a brief dizzy spell or head rush. In severe cases it may cause a person to faint. âSometimes people can have it and not feel a thing,â Jones says.
But if your blood pressure drops suddenly or causes symptoms like dizziness or fainting, it is too low. It can cause shock. Shock can be dangerous if it is not treated right away. Blood pressure is a measure of how hard the blood pushes against the walls of your arteries as it moves through your body.omeone with a systolic pressure of 120 and a diastolic pressure of 80 has a blood pressure of 120/80, or 120 over 80.. Normal blood pressure is lower than 120/80. Low blood pressure does not have a specific number where it is too low.