Above: The Fox Hole Radio built with a WWII-era âbluedâ razor blade and pencil lead for the detector. Note the bamboo coil form and the paper clip attached to a cork used to slide along the coil turns to tune the radio. The orange wire goes to the antenna, the black wire to ground.
FIV is diagnosed with a âsnapâ test, usually in combination with the Felv test. A positive FIV test almost always indicates active infection. The exception is young kittens born to an FIV positive queen. Young kittens possess antibodies to FIV from mom, but may not actually have the disease. So, if you have an FIV positive kitten, before panicking, have the kitten retested at 6 months of age.
Children with an abnormal newborn screen have a sweat chloride test done. This is the best test we have to figure out if a child has cystic fibrosis or not. For the sweat chloride test to be accurate, it must be done when a child is at least four weeks old.