**Northern Lincolnshire and Goole NHS Foundation Trust - Nuclear Medicine** 

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SELECT sop AS "SOP Code",title AS "Title",reviewdate AS "Review Date" FROM sops WHERE sop='REF009'|0]] 
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^  Authorised By  ^  Authorising Role  ^  Authorisation Signature \\  (only on master paper copy)  ^  Date Authorised  |
|  Prof. G Avery  |  ARSAC Licence Holder  |       |  2025-01-21  |

====== REF009 - Lacrimal Scintigraphy ======
See [[referral_criteria:ref000-how_to_refer_to_nlagnm|REF000 - Referring to Nuclear Medicine (NLAG)]] for details on how to refer.


=====  Description =====
Lacrimal scintigraphy (or dacroscintigraphy) is a noninvasive, low-radiation-dose method of evaluating the nasolacrimal drainage system. It is used to demonstrate patency of the system and to localize the general area of obstruction, which can be important for pre-surgical planning. It also can be used post-operatively to evaluate whether the surgery was successful.[(A MacDonald, S Burrell. Infrequently performed studies in Nuclear Medicine: Part 1. J Nucl Med Technol 2008; 36:132–143.)]



[[sqlite:unused:unused:unused:/home/heynmorg/public_html/wikifarm/nlag/data/meta/arsac/database2019.db|SELECT fullname AS "ARSAC Licence Holders" FROM practitionerlicences INNER JOIN practitioners,procedurecodes,praclicproc,nuclides,chemicalforms ON practitionerlicences.practitioner=practitioners.id AND praclicproc.plicid=practitionerlicences.id AND praclicproc.procid=procedurecodes.id AND procedurecodes.nuclide_id=nuclides.id AND procedurecodes.chemicalform_id=chemicalforms.id AND practitionerlicences.certificateactive='Y' WHERE procedure_code='99mTc-24-61'  AND date('now')<=expirydate  ORDER BY expirydate|0]]

[[sqlite:unused:unused:unused:/home/heynmorg/public_html/wikifarm/nlag/data/meta/employers_procedures/drl_database.db|
SELECT nuclide AS Nuclide, pharmaceutical_form AS "Pharmaceutical Form",  
local_drl AS "Local DRL (MBq)" FROM drls INNER JOIN nuclides ON drls.nuclide_id=nuclides.id 
WHERE drls.id=32|0]]

^  ^  Radiopharmaceutical   ^
^Typical Radiation Dose (mSv)  |  0.04   |

===== Staff Entitled to Refer =====
  * The referrer may be any clinician holding a current valid medical qualification and currently employed in Secondary Care.

===== Supplementary Drugs =====
None

===== Contraindications =====
^Absolute:|Acute Conjunctivitis requiring treatment [([[https://journals.lww.com/nuclearmedicinecomm/fulltext/2021/04000/lacrimal_scintigraphy_bnms_guidelines.16.aspx|Lacrimal scintigraphy BNMS Guidelines. Ines et al. Available online (Accessed on 21/05/2025).]])] |
^Relative:|Irritable/Itchy eyes on the day of the test [(#2)]\\ Inability to tolerate the imaging procedure [(#2)]\\ Pregnancy/Breast feeding [(#2)] |


===== Clinical Indications =====
|Localisation of nasolacrimal duct obstruction  |
|Post-operative evaluation of nasolacrimal surgery  |