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Services > Molecular Diagnostics

Advanced techniques are always in need for effective patient management. Diagnostic methods have evolved with the discoveries in molecular biology over the past few years and molecular diagnostics is gaining popularity due to its accuracyand sensitivity overconventional techniques.

Healthy and professional interaction with the specialists and experts in the field of medical diagnosticsenabled us in designing and developing effective Molecularassays. Leading Health Care providers and research institutes in India have validated our procedures and utilize our services.

Our molecular diagnostics laboratory is well equipped with state of the art infrastructure to provide accurate on time results.

Our Lab services are accredited by NABL (ISO 15189:2007)

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Guidelines for collection of specimen
Sample Collection device Holding Temperature Comments
Swabs Use viral transport medium Large swab for throat, lesion, etc. Small wire shaft swab for nasopharynx in young children or urethral samples Refrigerate Transport medium with swabs can be obtained from RAS Lifecsiences
Body fluids, BAL, Stool, Urine Use sterile leak proof containers Refrigerate Do not dilute body fluids or BAL in transport medium
Tissues Place in tubes containing liquid transport media to keep tissue moist Refrigerate Viral transport medium can be obtained from RAS Lifecsiences
Blood (Leukocytes or plasma) Collect in EDTA Vacutainers (lavender top tubes). Room temperature Sample must be processed as soon as possible after collection.

Specimen collection instructions for selected specimens
Nasopharynx swab Insert swab into nasopharynx, just past point of resistance. Leave in place for 1 min or rotate to dislodge respiratory epithelial cells; remove and place in transport medium. For small children, thin, flexible wire shaft can be used.
Nasopharynx aspirate Use suction pump connected to a catheter through a mucus trap; catheter should be French gauge 8 for infants, French gauge 12 for adults. Insert catheter as far into nose as possible. Specimen should be taken from posterior part of nasal mucosa which is lined with respiratory epithelium, and not from anterior part which is lined with squamous epithelium. Collect as much of NP secretions as possible; do not dilute sample with saline unless necessary.
Throat swab Swab posteror pharyngeal wall, not buccal mucosa, tonsils, tongue or palate. Swab firmly and thoroughly. Throat swabs are suboptimal for DFA testing due to predominance of squamous instead of respiratory epithelial cells obtained.
Lesion swab Clean lesion with sterile saline soaked gauze pad. Unroof vesicles or remove crusts. Firmly swab base and margins of the lesion, obtaining fluid and cells. After sample collection, clean lesion thoroughly with betadine. Do not use disinfectant prior to sample collection or virus may be inactivated.
Rectal swab Stool specimen required for enteric pathogens; rectal swab to swab rectal mucosa can be done for proctitis.

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