The CD11c – Percent Test is used for several key purposes:
• Diagnosing hematological conditions, such as chronic myelomonocytic leukemia (CMML), where CD11c+ cells may be increased or present in abnormal amounts.
• Evaluating immune system function and monitoring immune responses, particularly in diseases that affect myeloid cell populations or dendritic cells.
• Monitoring immune-related disorders like autoimmune diseases, inflammatory diseases, or infections, where changes in CD11c+ cell populations may be observed.
• Differentiating between normal and abnormal immune cell populations, especially in cases of leukemia, myelodysplastic syndromes, or monocytic disorders, where CD11c can help identify malignant or altered cells.
• Evaluating myeloid-related malignancies or conditions involving abnormal dendritic cells.

Preparation:

• No fasting or special preparation is required for this test.
• Inform your healthcare provider about any medications, particularly those affecting immune function or chemotherapy drugs, as these can influence cell populations.
• A blood sample is typically collected from a vein in your arm, and the sample is analyzed using flow cytometry to quantify CD11c+ cells.

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This test is typically ordered to:
• Evaluate immune system function, especially in individuals with suspected immunodeficiency.
• Monitor immune reconstitution after bone marrow or stem cell transplantation.
• Assess NK cell activity in autoimmune diseases, chronic infections, or certain cancers.
• Help diagnose immune-related disorders such as:
o Chronic Fatigue Syndrome (CFS/ME)
o HIV/AIDS
o Leukemia or lymphoma
• Investigate recurrent infections or unexplained inflammation.

Preparation

• Fasting: Not required.
• Medication: Inform your doctor about any medications or supplements you are taking, as some can affect immune cell levels.
• Timing: The test can be performed at any time of day.
• Hydration: Drink water to stay hydrated, as it can make the blood draw easier

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The test is ordered to:
• Evaluate immune system function, particularly B cell activity.
• Diagnose or monitor immunodeficiencies, such as:
o Common Variable Immunodeficiency (CVID)
o X-linked agammaglobulinemia (XLA)
• Monitor immune recovery after chemotherapy, bone marrow, or stem cell transplantation.
• Assess autoimmune conditions, lymphomas, or leukemias affecting B cells.
• Guide treatment decisions in patients receiving B-cell-depleting therapies (e.g., rituximab).

Preparation

• Fasting: Not necessary.
• Medications: Inform your doctor of any medications, especially immunosuppressants or biologics.
• Timing: Can be done at any time of day.
• Hydration: Drink plenty of water before the blood draw.

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This test is commonly used to:
• Evaluate B cell populations in the immune system.
• Diagnose and monitor B-cell-related conditions, such as:
o Non-Hodgkin lymphoma
o Chronic lymphocytic leukemia (CLL)
o Autoimmune diseases involving B cell dysfunction
• Monitor response to therapies that target CD20-positive cells, such as:
o Rituximab
o Obinutuzumab
• Assess immune reconstitution following bone marrow or stem cell transplantation.
• Investigate immunodeficiency disorders or recurrent infections.

Preparation

• Fasting: Not required.
• Medications: Inform your doctor about any ongoing medications, especially immunosuppressive or B-cell-targeting therapies.
• Time of day: The test can be performed at any time.
• Hydration: Drink water before the blood draw to facilitate the process

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This test is typically ordered to:
• Diagnose or rule out catecholamine-secreting tumors, such as:
o Pheochromocytoma (tumor of the adrenal gland)
o Paraganglioma (tumor outside the adrenal gland)
• Investigate symptoms such as:
o High blood pressure (especially if sudden or resistant to treatment)
o Severe headaches
o Rapid heartbeat (palpitations)
o Sweating
o Anxiety or tremors
• Monitor patients with a history of catecholamine-producing tumors

Preparation

Proper preparation is essential for accurate results:
• Fasting: May be required for 8–12 hours (follow your doctor’s instructions).
• Rest: Lie down and rest quietly for 20–30 minutes before the blood draw (lab staff usually facilitate this).
• Avoid certain foods for at least 24 hours before the test, including:
o Bananas, chocolate, vanilla, citrus fruits
o Caffeinated drinks (coffee, tea, soda)
• Avoid specific medications that can interfere with results (only stop them if directed by your doctor), including:
o Decongestants
o Certain antidepressants
o Beta-blockers or stimulants
• Avoid stress and vigorous exercise for 24 hours before the test.

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The test is typically ordered to:
• Diagnose or rule out pheochromocytoma – a rare tumor of the adrenal gland that causes excessive catecholamine production.
• Evaluate for neuroblastoma – a type of cancer that mostly affects children and originates in nerve tissue.
• Assess unexplained high blood pressure, especially if it’s severe or episodic (comes in bursts).
• Investigate symptoms such as:
o Rapid heartbeat
o Headaches
o Sweating
o Flushing
o Anxiety or panic attack-like symptoms

Preparation

Proper preparation is important to ensure accurate results. Here’s what typically needs to be done:
1. Medication and Substance Restrictions
Avoid or inform your doctor about the following at least 2-3 days before the test, as they can interfere with results:
• Medications: such as tricyclic antidepressants, beta blockers, decongestants, amphetamines, and MAO inhibitors.
• Caffeine, alcohol, and nicotine.
• Foods high in amines, such as:
o Bananas
o Chocolate
o Vanilla
o Citrus fruits
o Coffee and tea
Always follow your doctor’s instructions regarding medications. Do not stop taking any medication without medical advice.

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The CD10 test is primarily used to help diagnose and classify blood cancers, especially:
1. Acute Lymphoblastic Leukemia (ALL)
• CD10 is strongly expressed in most cases of B-cell ALL.
• Helps differentiate between B-cell and T-cell ALL.
2. Lymphomas
• CD10 expression is found in some non-Hodgkin lymphomas, particularly:
o Follicular lymphoma
o Burkitt lymphoma
o Diffuse large B-cell lymphoma (DLBCL)
3. Other Uses
• To monitor disease progression or response to treatment.
• To help distinguish malignant cells from normal cells.
• As part of an immunophenotyping panel in leukemia and lymphoma workups.

Preparation

Preparation for a CD10 test depends on the type of sample required:
1. Blood or Bone Marrow Sample (Flow Cytometry)
• No special preparation is usually needed.
• Inform your doctor of any medications or recent infections.
2. Tissue Biopsy (Immunohistochemistry)
• If a biopsy is required, follow the specific fasting or pre-procedure instructions provided by your doctor or laboratory.
3. General Guidelines
• Provide a complete medical history, especially if there’s a known or suspected blood cancer.
• Let your healthcare provider know about any recent chemotherapy or immunotherapy, as these may affect test results.

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This test is commonly ordered to:
• Screen for marijuana use in:
o Pre-employment checks
o Workplace drug testing programs
o Legal or forensic cases (e.g., probation, custody)
• Monitor patients in substance abuse treatment programs
• Support medical evaluations in cases of altered mental status, behavioral concerns, or suspected drug use
• Comply with insurance, school, or sports-related policies

Preparation

• No special preparation is usually required.
• Avoid detox products or excessive fluid intake, as these may affect results or trigger suspicion of sample tampering.
• Inform the healthcare provider of:
o Any prescribed medications or supplements, as some may cause false positives.
o Any recent cannabis or CBD product use (including edibles, oils, or smoke exposure).

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This test is used to:
• Check therapeutic levels of carbamazepine in the blood
• Adjust dosage to ensure safety and effectiveness
• Prevent toxicity, which can cause symptoms like dizziness, confusion, blurred vision, or serious side effects
• Evaluate adherence to medication in patients with chronic conditions
• Investigate side effects or symptoms of overdose
Typical therapeutic range:
4 to 12 mcg/mL (may vary slightly by lab)

Preparation

• Timing: The test is usually done just before the next scheduled dose (trough level) to get the most accurate reading.
• Fasting: Not required.
• Medications: Inform your doctor of all medications and supplements, as drug interactions may affect carbamazepine levels.
• Follow instructions carefully regarding when to take your last dose before the test

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• To evaluate calcium metabolism and diagnose conditions related to abnormal calcium levels, such as hypercalcemia or hypocalcemia.
• To monitor patients with kidney disease, parathyroid disorders, or those undergoing certain treatments that affect calcium levels.
• To assess symptoms like muscle spasms, numbness, tingling, or unexplained fatigue that might be caused by calcium imbalances.
• To provide a clearer picture when total calcium levels may be misleading due to abnormal protein levels in the blood.

Preparation:

• Typically, no special preparation is needed for the calcium ionized test.
• It’s best to have the blood sample drawn while fasting or at least avoid heavy meals before the test to ensure accuracy, but this depends on your healthcare provider’s instructions.
• Inform your doctor about any medications or supplements you are taking, as some may affect calcium levels.
• Blood samples for ionized calcium are often drawn in a specific way and need to be processed quickly to maintain accuracy, so it’s usually done at a clinic or hospital.

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