Tsunami warning system. A tsunami warning system (TWS) is used to detect tsunamis in advance and issue warnings to prevent loss of life and damage. It is made up of two equally important components: a network of sensors to detect tsunamis and a communications infrastructure to issue timely alarms to permit evacuation of the coastal areas.
The law also requires nursing facilities to maintain medical records for each patient. The records must be kept for seven years after the patient is discharged from the facility. If the patient is a minor, the records must be kept for one year after the patient reaches the age of 18, but for at least seven years.
For example, doctors in Massachusetts must keep medical records for at least 7 years from the date of the last patient encounter. If the patient is a minor, the doctor must keep the medical record for 7 years or until the patient reaches the age of 9, whichever is longer.Massachusetts hospitals must keep medical records at least 30 years after the discharge or final treatment of the patient.an it ever take longer? Generally, yes. If your medical records are kept off site, your hospital can take up to 60 days to respond to your request. If your hospital cannot respond in 30 days (or 60 days if your records are kept off site), they can get one 30-day extension.