ABRET Sleep Stages and Patterns || 100% accurate.

Which of the following is characteristic of active sleep in a neonate? a. trace alternant b. frequent movements c. regular respirations d. absence of eye movements correct answers frequent movements EEG signs of normal drowsiness [NREM Stage 1 (N1) sleep] include all of the following except a. increased beta activity b. alpha activity moves anteriorly c. left anterior temporal delta activity d. bursts of generalized theta activity correct answers left anterior temporal delta activity REM onset occurs a. 30 minutes after sleep onset b. after age 17 c. 90 minutes after sleep onset d. between N2 nd N3 correct answers 90 minutes after sleep onset Stage N3 sleep: a. positive occipital transients b. rapid eye movement c. no K-complexes d. 30 % delta activity correct answers 30 % delta activity Low amplitude 11-14 Hz, 1-2 sec duration, maximal in central regions a. 14 & 6 positive spikes b. hypnagogic hypersynchrony c. v-waves d. sleep spindles correct answers sleep spindles Sleep spindles may be more irregular or of lower voltage in: a. elderly patients b. stage II sleep c. females d. teenagers correct answers elderly patients Sharply contoured, surface positivity, and seen in clusters over the occipital lobe during drowsiness describes: a. POSTS b. wickets