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.
The average wait time is about 10 months. How quickly a match can be found for a potential recipient can depend on blood type and whether there is a high level of antibodies against human tissue already present (high panel reactive antibody [PRA]).