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Which laboratory finding is associated with multiple sclerosis?

A 1-year-old boy is evaluated for a suspected immune deficiency. He has a history since birth of eczema, recurrent rashes, and diarrhea. His white blood cell (WBC) count is 6.75/uL (normal values: 5.0–10.8 × 103 uL) with a normal differential. His platelet count is 35,000 (normal values: 150,000–350,000/uL), and the platelets are small. His IgG is 750 mg/dL (normal values: 600–1,500 mg/dL); IgM is 30 mg/dL (normal values; 75–150 mg/dL); IgA is 475 mg/dL (normal values: 50–125 mg/dL); IgE is 750 mg/dL (10–50 mg/dL). The boy’s blood is typed as O-positive, and he does not have anti-A or anti-B antibodies. Flow cytometry performed on his blood shows 11% CD19 (normal values: 5%–20%) and 50% CD3 cells (normal values: 60%–80%) with a normal ratio of CD4:CD8. T-cell function tests are abnormal. This boy most likely has:

A 40-year-old female patient has increased thyroid-stimulating hormone (TSH) and decreased T4 levels with a normal T3 level. Antithyroglobulin is measured as 1:1,280, and the antimicrosomal level is reportedly 1:6,400. This disease is characterized by hypoactivity of the thyroid with weight gain and a sluggish metabolism as a result of destruction of thyroglobulin. This patient most likely has:

All the following are procedures for taking a medical/dental history except one. Which one is the exception?

The WHO system groupings are based on cell _____.

If a SPC clinician determines a patient can not be treated on the day of the scheduled appointment due to a medical concern or issue the following procedures must be followed:

A transplant patient suffers an organ rejection within hours after the procedure. What type of rejection occurred?

A 9-month-old boy is suspected of having an immune deficiency because he had many recurrent infections with Streptococcus pneumoniae. Laboratory tests reveal a normal percentage of T cells and T-cell subsets but 

Which of the following tumor markers is used to test for hepatocellular carcinoma?

The precipitation of immune complexes in small blood vessels under the skin that occurs when antigen is injected in an animal with large amounts of circulating antibody describes which of the following?