Labs and diagnostics
Lab values with their normal and critical ranges, and the tests nurses prepare clients for.
osmolarity
oz-moh-LAIR-ih-tee · sustantivo
The amount of dissolved particles in a set volume of fluid, which decides which way water moves.
Entrada completaTEE waveThe wave on an electrocardiogram that shows the heart's lower chambers recovering electrically after each beat.
T3Laboratoriotee-THREETriiodothyronine: the more active of the two main thyroid hormones, or the blood test that measures it.
target cellTAR-git SELA cell that carries the receptor for a particular hormone, so the hormone can act on it; also a red blood cell shaped like a target.
theophylline levelLaboratoriothee-OF-ih-lin LEV-ulA blood test that measures how much of the bronchodilator theophylline is in the blood.
therapeutic rangether-uh-PYOO-tik raynjThe span of blood levels of a drug that is high enough to work but low enough to avoid toxic effects.
thoracentesisthor-uh-sen-TEE-sisA procedure in which a needle is passed through the chest wall to remove fluid or air from the space around a lung.
throat cultureLaboratoriothrote KUL-cherA test in which a swab of the back of the throat is grown in the lab to find which bacteria are there.
thrombocytopeniathrom-boh-sy-toh-PEE-nee-uhA blood platelet count below normal, under 150,000/mm3.
thyroid-stimulating hormoneLaboratorioTHY-royd STIM-yuh-lay-ting HOR-mohnA hormone from the pituitary gland that tells the thyroid to make thyroid hormone; its blood level is the main thyroid test.
tomographytoh-MOG-ruh-feeImaging that produces pictures of the body in thin slices.
tonometrytoh-NOM-uh-treeMeasuring the pressure inside the eye, a key test in finding and following glaucoma.
total cholesterolLaboratorioTOH-tul kuh-LES-tuh-rolThe amount of all types of cholesterol in the blood, measured as part of a lipid panel.
total iron-binding capacityLaboratorioTOE-tul EYE-ern BYND-ing kuh-PAS-ih-teeA blood test that measures how much iron the blood's carrier protein, transferrin, could hold.
total lung capacityTOH-tul lung kuh-PAS-ih-teeAll the air the lungs hold after the deepest possible breath in.
total proteinLaboratorioTOH-tul PROH-teenA blood test that measures all the protein in the serum, mainly albumin and globulins.
toxicology screenLaboratoriotok-sih-KOL-uh-jee SKREENA urine or blood test that checks for drugs, alcohol or poisons in the body.
transesophageal echocardiogramtrans-ee-sof-uh-JEE-ul ek-oh-KAR-dee-oh-gramAn ultrasound of the heart taken with a probe passed down the esophagus, which lies just behind the heart.
transverse planetrans-VERS playnA horizontal plane that divides the body or an organ into upper and lower parts; also called the axial or horizontal plane.
triglyceridesLaboratoriotry-GLIS-er-idesThe main type of fat in the blood and in body fat, measured in a lipid panel.
troponinLaboratorioTROH-puh-ninA protein found in heart muscle cells; its level in the blood is a lab test for heart muscle damage.
tuberculin skin testLaboratoriotoo-BER-kyoo-lin SKIN testA screening test in which a small amount of tuberculin protein is injected just under the skin of the forearm and the spot is checked days later.
tympanometrytim-puh-NOM-uh-treeA test that changes the air pressure in the sealed ear canal and measures how the eardrum moves in response.
type and crossmatchLaboratorioTYPE and KROS-machBlood tests done before a transfusion to find a person's blood type and check that donor blood will not react with it.
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