can you please answer ALL the questions and explain why! Introductory scenario A

Question

can you please answer ALL the questions and explain why!

Introductory scenario A 65-yearold patient is on his third round of chemotherapy for metastatic cancer. At his current visit to his oncologist, the patient complains of recent headaches and moments of disequilibrium. During the examination, the oncologist talks to the patient about his living arrangements. The patient states that despite the long travel distance to his appointments, he wants to remain in his current rural residence because he and his cat are very settled and happy there. Continue to questions Chapter 22 Serological and Molecular Diagnosis of parasitic and fungal infections

Explanation / Answer

1.A. , are receiving chemotherapy or have recently had an organ transplant, a previous toxoplasma infection may reactivate.Toxoplasmosis is an infection caused by a parasite. This parasite, called Toxoplasmagondii, can be found in cat feces .

2.b.The diagnosis of T. gondii infection or toxoplasmosis may be established byserologic tests, amplification of specific nucleic acid sequences (i.e., polymerase chain reaction [PCR]), histologic demonstration of the parasite and/or its antigens (i.e., immunoperoxidase stain), or by isolation of the organism.

4.b. If high titers of the IgM type of antibody are found, it means the infection is recent. If high titers of the IgG type of antibody are present, it means an infection occurred in the past.

3.c.The patients immunosuprressed state because of chemotherapy may cause false negative results.

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