R Tests

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Red Cell Transketolase

  • Test Name: Red Cell Transketolase
  • Laboratory: Haematology Referral Test
  • Specimen Type: Lithium Heparin
  • Specimen Container: Green
  • Specimen Volume: 3ml
  • Specimen Requirements: Do not send Fridays
  • Other details:
  • Frequency of analysis/ assay: Referred to external test site
  • Turnaround Time: < 4 weeks
  • Phone alert limits:
  • Preanalytical stability at room temp:

Reducing Substances

  • Test Name: Reducing Substances
  • Laboratory: Biochemistry Referral Test
  • Specimen Type: Faeces
  • Specimen Container: Universal container with blue top containing spatula
  • Specimen Volume: 20g faeces
  • Specimen Requirements: Fresh sample required. Sample must be in lab within 3 hours of collection.
  • Other details: N/A
  • Frequency of analysis/ assay: As required.
  • Turnaround Time: 10 working days
  • Phone alert limits: N/A
  • Preanalytical stability at room temp:

Renin

  • Test Name: Renin
  • Laboratory: Biochemistry Referred Test
  • Specimen Type: EDTA plasma
  • Specimen Container: Purple
  • Specimen Volume: 4mls
  • Specimen Requirements: Send sample to lab within 3 hours after collection.
  • Other details: Stop all antihypertensive drugs at least 2 weeks before taking the sample. Specify clearly on request form and sample if the patient is standing or lying.
  • Frequency of analysis/ assay:
  • Turnaround Time: 3 weeks
  • Phone alert limits: N/A
  • Preanalytical stability at room temp: Sample must be separated and frozen in the lab < 4 hours.

Respiratory Syncitial Virus (RSV)

  • Test Name: Respiratory Syncitial Virus (RSV)
  • Laboratory: Microbiology
  • Specimen Type: Nasopharyngael aspirate
  • Specimen Container: Sterile universal container.
  • Specimen Volume: At least 1ml of fluid.
  • Specimen Requirements: Refrigerate if delivery to the laboratory is delayed.
  • Other details: N/A
  • Frequency of analysis/ assay: Daily
  • Turnaround Time: 1 day
  • Phone alert limits: Positive RSV will be phoned to the requesting clinician
  • Preanalytical stability at room temp: N/A

Respiratory tract infections - Cystic

  • Test Name: Respiratory tract infections - Cystic Fibrosis patients
  • Laboratory: Microbiology
  • Specimen Type: Sputum, Broncho-alveolar lavage (BAL). Cough swab
  • Specimen Container: Sterile universal container, amies swab.
  • Specimen Volume: If possible at least 5ml sputum / BAL.
  • Specimen Requirements:Refridgerate if delivery to the laboratory is delayed.
  • Other details:N/A
  • Frequency of analysis/ assay:Daily
  • Turnaround Time: 2-5 days - prolonged incubation for slow growing
  • organisms.
  • Phone alert limits:New isolates of Pseudomonas aeruginosa, Burkholderia cepacia and MRSA will be phoned to the requesting clinician
  • Preanalytical stability at room temp: N/A

Respiratory tract infections - upper

  • Test Name: Respiratory tract infections - upper
  • Laboratory: Microbiology
  • Specimen Type: Swabs - Ear, Nose, Throat, Anthral washout, Endotracheal Tube
  • Specimen Container: Amies swab, sterile universal container.
  • Specimen Volume: At least 1ml of fluid.
  • Specimen Requirements: Refrigerate if delivery to the laboratory is delayed.
  • Other details: N/A
  • Frequency of analysis/ assay: Daily
  • Turnaround Time: 2-4 days
  • Phone alert limits: Beta Haemolytic Streptococcus Group A isolates, Beta Haemolytic Streptococcus Group B isolates from maternity, postnatal and neonatal patients, new MRSA and VRE isolates from inpatients are all phoned to the requesting clinician
  • Preanalytical stability at room temp: N/A

Respiratory tract infections -lower

  • Test Name: Respiratory tract infections -lower see also Urinary Antigen Testing
  • Laboratory: Microbiology
  • Specimen Type: Sputum, Broncho-alveolar lavage (BAL).
  • Specimen Container: Sterile universal container.
  • Specimen Volume: If possible at least 5ml sputum / BAL.
  • Specimen Requirements: Refrigerate if delivery to the laboratory is delayed.
  • Other details: N/A
  • Frequency of analysis/ assay: Daily
  • Turnaround Time: 2-4 days - prolonged incubation for fungi
  • Phone alert limits: Beta Haemolytic Streptococcus Group A isolates, Beta Haemolytic Streptococcus Group B isolates from maternity, postnatal and neonatal patients, new MRSA and VRE isolates from inpatients are all phoned to the requesting clinician
  • Preanalytical stability at room temp: N/A

Respiratory pathogens -molecular

Respiratory pathogens
Test Name: Biofire respiratory panel- Adenovirus, Coronavirus 229E, Coronavirus HKU1, Coronavirus NL63, Coronavirus OC43, SARS CoV-2, Human metapneumovirus, Human rhinovirus/enterovirus, Influenza A including subtypes H1, H3 and H1-2009, Influenza B, Parainfluenza Virus 1, Parainfluenza Virus 2, Parainfluenza Virus 3, Parainfluenza Virus 4, Respiratory Syncytial Virus, Bordetella parapertussis, Bordetella pertussis, Chlamydia pneumonia, Mycoplasma pneumoniae
Laboratory: Microbiology
Specimen Type: Nasopharyngeal swab.
Specimen Container: Universal transport medium swab
Specimen Volume: N/A
Specimen Requirements: Samples can be stored at 2-8 degrees Celsius for up to 72 hours before processing.  
Other details: N/A
Frequency of analysis/ assay: Daily
Turnaround Time: 1 working day
Phone alert limits: Atypical pneumonia pathogens, SARS CoV-2, Respiratory Synctial Virus and Bordetella pertussis or other pathogens following clinical Microbiology review are phoned to the requesting clinician.
Preanalytical stability at room temp: N/A

Retic Count

  • Test Name: Retic Count
  • Laboratory: Haematology
  • Specimen Type: EDTA
  • Specimen Container: Purple
  • Specimen Volume: 2.5ml
  • Specimen Requirements: Can be performed on a sample as FBC
  • Other details: N/A
  • Frequency of analysis/ assay: Once daily
  • Turnaround Time: 2 working days
  • Phone alert limits: N/A
  • Preanalytical stability at room temp: Specimens should ideally be processed within 4 hours of collection, send to the laboratory ASAP. Is suitable for up to 24 hours if stored at 2 - 8°C.

Rheumatoid factor.

  • Test Name: Rheumatoid factor. (RF)
  • Laboratory: Biochemistry
  • Specimen Type: Clotted Blood Specimen
  • Specimen Container: Yellow
  • Specimen Volume: 4ml clotted blood (1.5ml paediatric).
  • Specimen Requirements: Refrigerate if delivery to the laboratory is delayed
  • Other details: Repeat testing not performed within one year
  • Frequency of analysis/ assay: Daily
  • Turnaround Time: 3 days
  • Phone alert limits: N/A
  • Preanalytical stability at room temp: N/A

Rotavirus / Adenovirus

  • Test Name: Rotavirus / Adenovirus
  • Laboratory: Microbiology
  • Specimen Type: Faeces
  • Specimen Container: Sterile universal container with/without a spoon.
  • Specimen Volume: 1-2g(spoonful)
  • Specimen Requirements: Refrigerate if delivery to the laboratory is delayed
  • Other details: N/A
  • Frequency of analysis/ assay: Daily
  • Turnaround Time: 1 day
  • Phone alert limits: Positive Rotavirus and Adenovirus will be phoned to the requesting clinician
  • Preanalytical stability at room temp: N/A

Rubella

  • Test Name: Rubella
  • Laboratory: Serology
  • Specimen Type: Clotted Blood Specimen, salivary swab for PCR.
  • Specimen Container: Yellow, white (paediatric), salivary swab.
  • Specimen Volume: 4ml clotted blood (1.5ml paediatric).
  • Specimen Requirements: Refrigerate if delivery to the laboratory is delayed
  • Other details: N/A
  • Frequency of analysis/ assay: Daily, weekly for PCR.
  • Turnaround Time: 1 day for blood specimens, 7-10 days for PCR.
  • Phone alert limits: N/A
  • Preanalytical stability at room temp: N/A