L

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L-LACTATE - blood or plasma
LACTATE DEHYDROGENASE (LD) - plasma or serum
LACTATE DEHYDROGENASE (LD) ISOENZYMES - plasma or serum
LACTOSE TOLERANCE TEST - plasma
LAMELLAR BODIES - amniotic fluid
LATS
LAXATIVES - urine, faeces
LD, LDH
LDL
LEAD - blood
LEAD - urine
LECITHIN-SPHINGOMYELIN (L/S) RATIO - amniotic fluid
LEGIONELLA DFA
LEGIONELLA SP ANTIBODIES - serum
LEGIONELLA SP ANTIGEN
LEPTOSPIRA SP ANTIBODIES - serum
LEUCOCYTE ACID PHOSPHATASE
LEUCOCYTE ALKALINE PHOSPHATASE
LEUCOCYTE COUNT
LEUCOCYTE DIFFERENTIAL COUNT
LEUCOCYTE ESTERASE
LEUCOCYTE MARKERS
LFTs
LH
LIGHT CHAINS (OF IMMUNOGLOBULINS)
LIPASE - serum
LIPIDS
LIPOPROTEIN ELECTROPHORESIS - plasma or serum
LITHIUM - serum
LIVER BIOPSY
LIVER FLUKE ANTIBODIES
LIVER FUNCTION TESTS
LIVER/KIDNEY MICROSOMAL ANTIBODIES - serum
LONG ACTING THYROID STIMULATING ANTIBODY
LUNG BIOPSY
LUPUS ANTICOAGULANT
LUPUS BAND TEST - skin
LUPUS INHIBITOR - plasma
LUTEINISING HORMONE (LH) - serum
LYMPH NODE BIOPSY
LYMPHOCYTE PROLIFERATIVE RESPONSE
LYMPHOCYTE TYPING
LYMPHOCYTOTOXIC ANTIBODIES
LYMPHOKINE PRODUCTION
LYSOSOMAL ENZYME STUDIES
LYSOZYME