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La antibody
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Lactate (blood)
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Lactate dehydrogenase
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Lamin A/C Gene
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Lamotrigine
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LDL cholesterol
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Lead
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Legionella urinary antigen
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Leishmania culture or PCR
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Leishmania serology
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Leptospira PCR
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Leptospira serology (Weils disease)
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Levetiracetam
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Line tips (not shunts or other catheters)
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Lipid profile
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Lipoprotein A
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Lithium
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Liver Antibody
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Liver function tests
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Liver-kidney microsomal antibody
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Low vaginal swab - see high vaginal swab webpage
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Lupus Anticoagulant
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Luteinising hormone
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Lyme disease - see Borrelia burgdorferi
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Lymphocyte Activation markers
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Lymphocyte Proliferation test
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Lymphocyte subsets TBNK
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Lymphogranuloma venereum (LGV)