Synonyms |
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Clinical
Indications |
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Suspected
toxicity. Metallic mercury vapour is toxic and inhalation of
high concentrations may give rise to pneumonitis and pulmonary
oedema. Chronic exposure to lower concentrations causes
gingivitis and stomatitis with excessive salivation, headaches
and CNS effects.
Ingestion of inorganic mercury salts produces abodominal pain,
vomiting and corrosion of mucosal membranes and following
absorption, renal tubular necrosis.
There is little evidence of long term hazard to patients from
use of mercury in dental amalgam (mixture of metallic mercury
and a silver-tin alloy) - see factsheet.
However, preparation of such amalgams can be hazardous to
dental personnel if insufficient precautions are not taken.
Symptoms of long-term exposure may be vague in the form of
headaches and irritability.
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Request
Form |
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Combined Pathology Blood form
(Yellow/Black or Blue for GP's)
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Availability |
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Analysed by referral
laboratory if specific criteria met.
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Specific
Criteria |
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If agreed with Consultant Biochemist
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Turnaround
Time |
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One
month
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Specimen |
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There
are stability problems with mercury in urine so a whole
blood sample is preferred.
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Container |
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PLASTIC orange top (lithium
heparin) tubes
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Lab.
Handling |
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Store at 4C without separation.
Send by courier or first class post, early in week.
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Causes
for Rejection |
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Unlabelled sample
Not meeting specific
criteria for analysis.
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