Test results expressed as numbers
1) In molecular diagnostics, a process by which multiple copies of genetic material (RNA, DNA) are generated so as to produce adequate levels of the target to be detected or quantitated 2) The process by which the signal from a detection system is increased so as to improve detection or quantitation of an analyte of interest, such as genes or drugs...
Were you looking instead for information on the hCG test used in certain cancers? If so, see the article hCG Tumor Marker .
A sample of urine collected at any time of the day; this type of sample may be used to detect the presence of various substances in the urine at one particular point in the day. Often, no special handling is required with these samples. Other types of urine samples are requested when special types of evaluations are required (see 24-hour urine...