In the AM he said that you really do have to wait 4 hours before any type of calcium, including milk in coffee and cereal etc. He also switched me from levothyroxine to name brand synthroid because of the potential variations in the generic drug.
C. Wavelength is the length of one complete wave cycle Wavelength of a sine wave, Î», can be measured between any two points with the same phase, such as between crests, or troughs, or corresponding zero crossings as shown Comments Report
Therefore, each small 1-mm square represents 0.04 sec (40 msec) in time and 0.10 mV in voltage. Because the recording speed is standardized, one can calculate the heart rate from the intervals between different waves. P wave (atrial depolarization) The P wave represents the wave of depolarization that spreads from the SA node throughout the atria, and is usually 0.08 to 0.10 seconds (80-100 ms) in duration. The brief isoelectric (zero voltage) period after the P wave represents the time in which the impulse is traveling within the AV node (where the conduction velocity is greatly retarded) and the bundle of His.