Vette -Psg calculations Exam questions with
correct answers
How |to |you |calculate |the |Total |Recording |Time |(TRT)? |- |VERIFIED |ANSWER✔✔-Epoch |number |of
|"Lights |on" |- |Epoch |number |"Lights |out" |/ |2
How |do |you |calculate |Total |Sleep |Time |(TST)? |- |VERIFIED |ANSWER✔✔-Total |epochs |of |N1 |+ |N2 |+ |N3 |
+ | R |/ |2
How |do |you |calculate |Sleep |Period |Time |(SPT)? |- |VERIFIED |ANSWER✔✔-Last |epoch |of |sleep |- |first |
epoch |of |sleep |/ |2
How |do |you |calculate |percentage |of |time |in |each |sleep |stage |(% |N1, |% |N2, |% |N3, |% |R)? |- |VERIFIED |
ANSWER✔✔-% |N1= |minutes |of |N1 |/ |TST |x |100
% |N2 |= |minutes |of |N2 |/ |TST |x |100
% |N3 |= |minutes |of |N3 |/ |TST |x |100
%R |= |minutes |of |R |/ |TST |x |100
How |do |you |calculate |percentage |of |wake |time? |- |VERIFIED |ANSWER✔✔-Minutes |of |W |/ |TRT |x |100
How |do |you |calculate |Wake |after |sleep |onset |(WASO)? |- |VERIFIED |ANSWER✔✔-Total |minutes |scored |
W |between |the |epoch |of |sleep |onset |and |the |last |epoch |scored |as |asleep.
How |do |you |calculate |Wake |before |sleep |(this |is |the |same |as |sleep |latency) |(WBSO)? |- |VERIFIED |
ANSWER✔✔-Total |minutes |scored |W |from |"lights |out" |to |the |first |epoch |scored |as |asleep. |
First |epoch |scored |asleep |- |"lights |out" |epoch |/ |2
correct answers
How |to |you |calculate |the |Total |Recording |Time |(TRT)? |- |VERIFIED |ANSWER✔✔-Epoch |number |of
|"Lights |on" |- |Epoch |number |"Lights |out" |/ |2
How |do |you |calculate |Total |Sleep |Time |(TST)? |- |VERIFIED |ANSWER✔✔-Total |epochs |of |N1 |+ |N2 |+ |N3 |
+ | R |/ |2
How |do |you |calculate |Sleep |Period |Time |(SPT)? |- |VERIFIED |ANSWER✔✔-Last |epoch |of |sleep |- |first |
epoch |of |sleep |/ |2
How |do |you |calculate |percentage |of |time |in |each |sleep |stage |(% |N1, |% |N2, |% |N3, |% |R)? |- |VERIFIED |
ANSWER✔✔-% |N1= |minutes |of |N1 |/ |TST |x |100
% |N2 |= |minutes |of |N2 |/ |TST |x |100
% |N3 |= |minutes |of |N3 |/ |TST |x |100
%R |= |minutes |of |R |/ |TST |x |100
How |do |you |calculate |percentage |of |wake |time? |- |VERIFIED |ANSWER✔✔-Minutes |of |W |/ |TRT |x |100
How |do |you |calculate |Wake |after |sleep |onset |(WASO)? |- |VERIFIED |ANSWER✔✔-Total |minutes |scored |
W |between |the |epoch |of |sleep |onset |and |the |last |epoch |scored |as |asleep.
How |do |you |calculate |Wake |before |sleep |(this |is |the |same |as |sleep |latency) |(WBSO)? |- |VERIFIED |
ANSWER✔✔-Total |minutes |scored |W |from |"lights |out" |to |the |first |epoch |scored |as |asleep. |
First |epoch |scored |asleep |- |"lights |out" |epoch |/ |2