Normal Lab Values

To assist physicians in the interpretation of RigiScan data, GOTOP Medical

is pleased to provide the following ten case studies conducted by the

Uro-Center® Of San Diego. The Uro-Center of San Diego has used the RigiScan ® Monitor to evaluate over 500 patients complaining of erectile dysfunction. Their current work-up consists of:

General medical history

Sexual history

Sleep history

Physical exam

Serum evaluation

Doppler study (pre-and post-exercise)

Electrophysiological tests

3 nights of RigiScan monitoring

From this extensive experience, Bonnie Johnson, N.P., Clinical Director fo the Uro-Center, has summarized the following guidelines by urologists at the clinic.

TEST

Serum Evaluation

Glucose (fasting)

TST

Prolactin

LH

NORMAL RANGE

62-128 mg. /dl.

300-1000 ng. /dl.

>18.5 ng. /ml.

<25.0 mlU./ml.

Doppler Study (pre- and post-exercise) Penile brachial index (PBI)

Normal

Borderline abnormal

Abnormal

>.75

61-.74

<.60

RigiScan Monitor Traces

Frequency

Duration

Tumescence

Base

Tip

3-6 events/8-hour night

10-15 minutes/event

3 cm increase over resting tumescence

2 cm increase over resting tumescence

Rigidity

Non-rigid

Buckling will occur, but erection

may be Stuffable

Non-buckling, rigid

<40%

40-70%

>70%

In addition, the following trends are considered abnormal when they occur during the majority of events over several nights:

TERM

Dissociation

Uncoupling

Definition

distal penile shaft softening—the RigiScan trace would show a base reading of abnormal/normal tumescence

normal tumescence with significantly reduced or absent rigidity,

May occur at the base and tip of the penis concurrently