And for my money, the best show in TV's greatest decade was Lost in Space. It's impossible to describe what watching this show was like in the 1960s. It's an experience that simply can't be re-produced today.
The reaction reaches its peak about 48 to 72 hours after the PPD is injected. Waiting too long or not long enough may cause an underestimation of the reaction and, therefore, affect how the test is read.A positive test will cause redness, itching and a raised, hardened area of skin called an induration.
PPD: Tuberculin Skin Test. Soldiers (unless exempt) are required to have a PPD within a year of deploying. Soldiers must return to the clinic 48-72 hours later to have it read and annotated in the Soldierâs MEDPROS as either negative or positive. PPDs are never placed on Thursday or Fridays before a 3 day weekend.