In step 2 of an electrophilic addition, the positively charged intermediate combines with (Y) that is electron-rich and usually an anion to form the second covalent bond.Step 2 is the same nucleophilic attack process found in an SN1 reaction.n step 2 of an electrophilic addition, the positively charged intermediate combines with (Y) that is electron-rich and usually an anion to form the second covalent bond.
A. The Sleep Test Optimization Program is prior. authorization initiative for Polysomnography (PSG). There are two types of sleep studies â (1) Attended. Sleep Studies - performed in an outside facility, office, sleep clinic or laboratory; and (2) Unattended.
CPAP is a common treatment used to manage sleep-related breathing issues like Obstructive Sleep Apnea. The CPAP titration study will typically follow an in lab diagnostic study. The titration study itself is done in a lab and is for the purposes of calibrating a CPAP machine to ensure your therapy is successful. When possible, here at Alaska Sleep Clinic we try to perform the CPAP titration on the same night as the diagnostic study. However, that is not always the case. In some instances where the diagnosis is not clear prior to your first sleep study, you will need to have a second titration study.