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1515

PHOTO PLETHYSMOGRAPHY (PPG) TESTS FOR....?

VENOUS INSUFFICIENCY

DETECTS CHANGES IN BLOOD CONTENT OF SKIN

PPG

USES DIODE AND PHOTO SENSOR

PPG

INCREASED BLOOD FLOW CAUSES INCREASED/DECREASED REFLECTION (PPG TESTING)

DECREASED

A DECREASED REFLECTION ON A PPG IS DISPLAYED AS A POSITIVE/NEGATIVE WAVEFORM?

POSITIVE

WHICH COUPLING DETECTS SLOW CHANGES IN BLOOD FLOW ?

DC

WHICH COUPLING HAS FLOW IN BOTH DIRECTIONS?

AC

WHICH COUPLING REVERSES POS. TO NEG. 60 X PER SECOND?

AC

RECORDS ON HEAT SENSITIVE PAPTER

PPG

TEST THAT MEASURES VRT (VENOUS REFILL/REACTIVE TIME)

PPG

NORMAL VRT TIME IS > ? SECONDS

20 SECONDS

TEST THAT MEASURES VENOUS FUNCTION

AIR PLETHYMOGRAPHY (APG)

TESTS PATIENT SUPINE AND THEN STANDING

APG

DISPLAYS VOLUME CHANGES ON AN ANALOG DISPLAY

APG

DOCUMENTS VOLUME CHANGES FROM POSITION CHANGES OR EXCERCISE

APG

10 TIP TOE MANEUVER DONE

APG

VENOUS FILL.ING INDEX (VENOUS VOLUME/ VENOUS FILLING) SHOULD BE LOW/HIGH

LOW

MEASURES CALF MUSCLE PUMP

EJECTION FRACTION

EJECTION VOLUME AND FUNCTIONAL VENOUS VOLUME =

EJECTION FRACTION (EF)

EJECTION FRACTION SHOULD BE A LOW/HIGH PERCENT?

HIGH

RESIDUAL VOLUME FRACTION (RVF) IS EQUAL TO

AMBULATORY VENOUS PRESSURE

VENOUS VOLUME REMAINING AFTER 10 TIP TOES IS.....

RESIDUAL VOLUME FRACTION

RESIDUAL VOLUME FRACTION SHOULD BE A LOW/HIGH PERCENT?

LOW

DOPPLER USED TO EVALUATE DEEP VENOUS OBSTRUCTION

CW DOPPLER

TEST TO EVALUATE VENOUS INCOMPETENCE

CW DOPPLER

CW DOPPLER CAN'T DIFFERENTIATE DVT FROM?

EXTRINSIC COMPRESSION

CW DOPPLER TESTING FOR DVT PATIENT SHOULD BE IN REVERSED ? POSITION

TRENDELENBURG

CW DOPPLER TEST FOR DVT SHOULD USE ?MHZ PROBE?

5 MHZ

START WITH ASYMPTOMATIC/SYMPTOMATIC SIDE?

ASYMPTOMATIC

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