What possible conditions were ruled out by the surface examination, normal body temperature and CBC?
And Explain the process and purpose of a lumbar puncture or “spinal tap”.

Hello!

Possible conditions ruled out by the surface examination, normal body temp. and cbc are schizophrenia, meningitis, hypothermia, and hyperthermia. A lumbar puncture (LP), also called a spinal tap, is an invasive outpatient procedure used to remove a sample of cerebrospinal fluid (CSF) from the subarachnoid space in the spine. (This test is similar to a blood test, in which a needle is inserted into an artery to collect blood for testing.)  

Have a phenomenal day!

which

what is a measurement of the earth’s history divided into time periods?

> fossil record <

sedimentary rock

> geologic time scale <

radioactive elements

blood enters the heart through two large veins, the inferior and superior vena cava, emptying oxygen-poor blood from the body into the right atrium of the heart. as the ventricle contracts, blood leaves the heart through the pulmonic valve, into the pulmonary artery and to the lungs where it is oxygenated.