Quality Assurance

Recommendations

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• Recommended Chart Notations

  Event	Notation	Location on Chart*
  Beginning of Test	X	Below Cardiovascular Tracing
  End of Test	XX	Below Cardiovascular Tracing
  Gain Settings	ie 40 SU	Start of Test or at Change
  Identified Movement	M (Arm)	Most Affected Tracing (an arm in this case)
  Unidentified Movement	M	Most Affected Tracing
  Extended Movement	M---M	Most Affected Tracing
  Talking	T	Above Upper Pneumograph
  Extended Talking	T----T	Above Upper Pneumograph
  Examinee Falls Asleep	SP--SP	Above Upper Pneumograph
  Clear Throat	CT	Above Upper Pneumograph
  Cough	C	Above Upper Pneumograph
  Extended Coughing	C----C	Above Upper Pneumograph
  Sneeze	SZ	Above Upper Pneumograph
  Sniff	SN	Above Upper Pneumograph
  Swallow	SW	Above Upper Pneumograph
  Sigh	SI	Above Upper Pneumograph
  Yawn	Y	Above Upper Pneumograph
  Belch	B	Above Upper Pneumograph
  Laugh	L	Above Upper Pneumograph
  Extended Laughing	L----L	Above Upper Pneumograph
  Deep Breath	DB	Above Upper Pneumograph
  Noise (Inside Room)	ISN	Most Affected Tracing
  Noise (Outside Room)	OSN	Most Affected Tracing
  Disregard Response	\\	Used for EDA Tracing Only to Disregard Early Response
  Poorly Worded Question	PW	Below Cardiovascular Tracing after Question Number
  Examiner Error	EE	Most Affected Tracing
  Movement Instruction	MI	Below Cardiovascular Tracing
  Talking Instruction	TI	Below Cardiovascular Tracing
  Breathing Instruction	BI	Below Cardiovascular Tracing
  Answering Instruction	AI	Below Cardiovascular Tracing
  "Take a Deep Breath"	TDB	Above Upper Pneumograph
  Will Repeat Last Question	WR	Below Cardiovascular Tracing

  *These recommended locations apply only to analog instruments. Computer polygraphs typically place all notations at the top of the chart.

• Recommended Sensor Placement

  Respiration Sensors

  • Upper sensor around the chest, about 3 inches above the sternum.
  • Lower sensor around the abdomen, at the bottom of the ribcage.

  Electrodermal Plates

  • Preferred: Palmar surfaces of two non-consecutive fingers.
  • Alternate Sites: Sides of fingers and palms of hands.
  • Last Resort (requires justification): Toes or Head.

  Blood Pressure Cuff

  • Preferred: Upper Arm, with bladder over the brachial artery.
  • Alternate Sites: Forearm and Wrist.
  • Last Resort (requires justification): Calf of Leg.

  Photoplethysmograph

  • At the Fingertip

• Recommended Amplitude Ranges

  • Respiration: 1/2 inch (1.3 cm) to 3/4 inch (1.9 cm)
  • Electrodermal: 1/2 inch (1.3 cm) to 4 inches (10 cm)
  • Cardiovascular: 1/2 inch (1.3 cm) to 3/4 inch (1.9 cm)

• 90% Confidence Interval

  Respiration

  • Males: 10-23 per minutes
  • Females: 11-25 per min

  Pulse: 60-120 beats per min

• Number of Charts

  GKT	4-10
  MGQT	2-3
  POT	2-3
  RI	2-3
  TES	1
  ZCT	2-5