In the United States Army Special Forces, the motto is traditionally believed to mean to free from oppression or to liberate the oppressed in English. A correct translation of the phrase de oppresso liber would be from (being) an oppressed man, (to being) a free one. The preposition de here means from in the sense of a change from one status to another, not intending separation from the oppressed, but moving from a source in the oppressed.
Qualitative hCG testing detects the presence of hCG and is routinely used to screen for a pregnancy. This test may be performed by a laboratory, at a doctor's office, or at home using a home pregnancy test kit.
HCG urine tests are usually used for routine pregnancy testing. The test does not measure the exact amount of hCG, but it shows if hCG is present. Home pregnancy tests that show hCG in urine are also widely available.