John and Doves,
Because this is a PASSIVE chip, it can be placed under the skin ( subdermal ). Therefore we must conclude that subdermal chips--like VeriChip -- will soon have sensors included that will relate body physiologies
( blood pressure, temperature, sugar level, pulse, etc. )
Sensors do not need batteries, so therefore they can be implanted in the body.
Also, we must remember that Digital Angel ( maker of sensor-chips ) has been absorbed by VeriChip along with Applied Digital. Now, anything goes.

In Him,
Jim Goodrick

"LifeChip" : passive transponder with sensors - September 4, 2007
The St. Paul Minn.-based frequency identification technology company said the LifeChip microchip is the first of its kind to receive USDA approval.
The company [ DIGITAL ANGEL ] (AMEX: DOC) said each LifeChip is the size of a grain of rice and contains a passive transponder programmed with a unique code that allows owners, breeders, trainers and veterinarians to identify the horse and check its temperature. The number can be recorded in breed and discipline registries or kept in farm and ranch files for future reference.
Digital Angel recently merged with Delray Beach-based Applied Digital Solutions, its biggest investor and parent company of VeriChip Corp. and Thermo Life Energy Corp.
http://news.moneycentral.msn.com/provider/providerarticle.aspx?Feed=ACBJ&Date=20070904&ID=7412422


BioThermal : Sensors For Animals   http://users.cybertime.net/~ajgood/biothermo.html

Animals http://users.cybertime.net/~ajgood/pets.html

ThermoLife : Sensors for Humans http://users.cybertime.net/~ajgood/biosensors.html

Drug Delivery System  http://users.cybertime.net/~ajgood/dds.html   

All VeriChip Articles http://users.cybertime.net/~ajgood/chipindex.html