Type of test Nuclear medicine

Normal findings

No increased parathyroid uptake

Test explanation and related physiology

 Hypercalcemia can be caused by hyperparathyroidism. Parathyroid hyperplasia, adenoma, or cancer can cause hyper parathyroidism. Parathyroid hyperplasia causes enlargement of all four parathyroid glands. A parathyroid adenoma or cancer, however, causes enlargement of only one parathyroid gland and suppression of the other three glands.

Parathyroids are located most commonly on the lateral borders of the thyroid lobes—two on each side. However, para thyroid anatomic location varies considerably, and they may be located anywhere from the upper neck to the lower mediastinum. Parathyroid scanning is also done immediately before surgery to help the surgeon identify the parathyroid glands and particularly the pathologic glands. In this test, the scan is performed on the parathyroid glands. In the operating room, if the preoperative scan result is abnormal, the surgeon scans the suspect area of the neck with a hand-held gamma ray detector probe. Increased counts are noted in the regions where the parathyroid abnormalities are located.

Contraindications

• Patients who are pregnant

Procedure and patient care

* Before Explain the procedure to the patient. See p. xviii for radiation exposure and risks.

* Tell the patient that fasting is usually not required.

During

 • Note the following procedural steps for the single tracer double phase (STDP) method.

1. Technetium-99m sestamibi is injected intravenously.

2. At 15 minutes and 3 hours, the patient is placed in a supine position. For planar images, the detector is passed over the neck and upper chest area, and the radioactive counts are recorded and displayed.

3. For SPECT/ computed tomography (CT) screening, the patient is placed in the appropriate unit in the supine position.

 4. Initially, the tracer lights up both the thyroid and para thyroid glands. At 3 hours, the tracer remains only in the pathologic parathyroid tissue.

• Note that this study is performed by a nuclear technologist and interpreted by a physician in the nuclear medicine department.

* Tell the patient that no discomfort is associated with this study.

After

* Assure the patient that the dose of radioactive technetium used in this test is minute and therefore harmless.

 Abnormal findings

 Parathyroid adenoma, carcinoma, or hyperplasia Aberrantly placed parathyroid tissue in the upper neck, thyroid gland, or mediastinum

اخر الاخبار

اخبار العتبة العباسية المقدسة

قسم الشؤون الفكرية يستعد لافتتاح موكب سقّاء عاشوراء في النجف الأشرف

المجمع العلميّ يُجري اختبارات نظريّة وتطبيقيّة لطلبته في قضاء الحمزة الشرقيّ

لطلبتها وملاكاتها جامعة الكفيل تواصل تنظيم الورشة التدريبية للإسعافات الأولية استعدادًا لزيارة الأربعين

مصنع الجود للمحاليل الوريدية: نحرص على إنتاج دواءٍ آمن وفعّال بأيدٍ وطنيّة دعمًا للقطّاع الصحي العراقي

المزيد

الآخبار الصحية

"شعور لا مفر منه" في الحياة يهدد حياة الملايين بالموت المبكر!

أعراض للخرف قد تظهر في المشي.. كيف نكتشفها؟

ماذا يحدث لسكر الدم عند شرب القهوة؟

سرطان القلب.. لماذا يعد من أندر أنواع السرطانات؟

المزيد

الآخبار التكنلوجية

صهر أردوغان يطلق منصة تواصل جديدة.. تنافس فيسبوك ؟!

غوغل تطلق "مرشد الويب" لتنظيم نتائج البحث بالذكاء الاصطناعي

بعد 20 عاما.. رصد أصغر أفعى في العالم مجددا في بربادوس !

ذكر أم أنثى؟.. دراسة تنسف الاعتقاد الشائع حول جنس المولود

المزيد

مواضيع ذات صلة

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Clinical Immunology Laboratory (Diagnostic Testing)

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Determination of the ABO Group

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pancreatobiliary fish testing

pancreatic enzymes (Pancreatic secretory test, Amylase, Lipase, Trypsin, Chymotrypsin)

pancreatic elastase (PE, EL1, Elastase-1, Fecal Elastase)

Trends in Immunoassay Automation

Flow Cell Cytometry