Chapter IV: Percutaneous Tuberculin Test

1. SYNONYMS: Salve Test; Moro Test.

2. SALVE: Equal parts of Old Tuberculin and anhydrous lanolin.

3. APPLICATION OF TEST:

Site: abdominal wall below ensiform process, _or_ breast below
nipple, _or_ inner surface of forearm.

Application: rub in with the finger (using moderate pressure) a small
particle of salve about the size of a pea.

Rub it in into an area about 5 cm.; rub 1 minute.

4. REACTION:

In 24 to 48 hours--_either_ numerous small reddened spots which
disappear in a few days, _or_ numerous small nodules, _or_
coalescing nodules on a red base, etc.

5. INTERPRETATION OF REACTION:

Positive reaction is assumed to indicate existing tuberculous
infection somewhere in the body; does not indicate that the process
is active.

6. FIELD OF APPLICATION OF PERCUTANEOUS TUBERCULIN TEST:

The percutaneous tuberculin test fails in a large proportion of
tuberculosis cases.

The test is used rarely at present.

LIGNIERES TEST

A modification of the Moro Test

Instead of salve, a few drops of Old Tuberculin rubbed in.

Used rarely at present.