â¢ What happened to the sound as you slid the ruler back onto the desk? â¢ Describe the motion of the ruler. 2 1 MATERIALS ruler Pitch depends on the frequency of a sound wave. When you listen to music, you hear both high and low sounds. The characteristic of highness or lowness of a sound is called The frequency of a sound wave determines the pitch of the sound you hear. Remember that frequency is the number of waves passing a fixed point in a given period of time. A high-frequency wave with short wave-lengths, such as that produced by a tiny flute, makes a high-pitched sound.
Report This | Share this:How long does Metformin stay in your system?Sorry, one more thing. Clinically speaking, metformin peaks in the system 1-3 hours after taking it. It has a half-life of 6.2-17.6 hours.
To avoid this complication, metformin must be withheld after the administration of the contrast agent for 48 hours, during which the contrast-induced renal failure becomes clinically apparent. If renal function is normal at 48 hours, the metformin can be restarted. There is no scientific justification for withholding metformin for 48 hours before administration of the contrast medium, as currently recommended in the package insert.