Polysomnography is used to diagnose, or rule out, many types of sleep disorders including narcolepsy, idiopathic hypersomnia, periodic limb movement disorder (PLMD), REM behavior disorder, parasomnias, and sleep apnea.
Calculating Due Date: Estimated Due Date. Based on the last menstrual period, the estimated due date is 40 weeks from the first day of the period. This is just an estimate since only about 5% of babies are born on their estimated due date.
DATEVALUE(date_text). Converts a date in the form of text to a date in datetime format. Returns the day of the month, a number from 1 to 31. Returns the date that is the indicated number of months before or after the start date.Use EDATE to calculate maturity dates or due dates that fall on the same day of the month as the date of issue.onverts a date in the form of text to a date in datetime format. Returns the day of the month, a number from 1 to 31. Returns the date that is the indicated number of months before or after the start date.