The prozone - Study guides, Class notes & Summaries

B; The correct answer for this question is 1300 mg/dL. The laboratorian performed a 1:4 dilution by adding 0.25 mL (or 250 microliters) of patient sample to 750 microliters of diluent. This creates a total volume of 1000 microliters. So, the patient sample is 250 microliters of the 1000 microliter mixed sample, or a ratio of 1:4. Therefore, the result given by the chemistry analyzer must be multiplied by a dilution factor of 4. 325 mg/dL x 4 = 1300 mg/dL. - correct answer ...

Concerning antigen-antibody reactions, the prozone effect causes which of the following results? A. False positive B. False negative C. No reaction D. Mixed field reaction - Answer- B. False negative The following characteristics are applicable to Interferon-Gamma Release Assays (IGRAs) except: A. Can be used in patients with active tuberculosis disease symptoms B. Preferable for patients who have received a bacillus Calmette-Guérin (BCG) vaccination C. Can be used instead of puri...

AAB MT Immunology Review Exam Questions and Answers Concerning antigen-antibody reactions, the prozone effect causes which of the following results? A. False positive B. False negative C. No reaction D. Mixed field reaction - Ans ️️ -B. False negative The following characteristics are applicable to Interferon-Gamma Release Assays (IGRAs) except: A. Can be used in patients with active tuberculosis disease symptoms B. Preferable for patients who have received a bacillus Calmette-Gué...

ASCP MLS Questions and Answers Latest. What feature is most often found with patients with a splenectomy on a Wright's stained blood smear? Answer Howell-Jolly bodies Patients with antibody to the following antigen are immune to Hepatitis B: Answer Surface antigen (HbSAg) Which two of the following tests are helpful for documenting previous Streptococcal throat and skin infections: Answer ASO titer and Anti-DNase B In mass spectrometry, the "appearance potential" is defined as the: Ans...

Concerning antigen-antibody reactions, the prozone effect causes which of the following results? A. False positive B. False negative C. No reaction D. Mixed field reaction - correct answer B. False negative The following characteristics are applicable to Interferon-Gamma Release Assays (IGRAs) except: A. Can be used in patients with active tuberculosis disease symptoms B. Preferable for patients who have received a bacillus Calmette-Guérin (BCG) vaccination C. Can be used instea...

ASCP MLS Questions and Answers Latest. What feature is most often found with patients with a splenectomy on a Wright's stained blood smear? Answer Howell-Jolly bodies Patients with antibody to the following antigen are immune to Hepatitis B: Answer Surface antigen (HbSAg) Which two of the following tests are helpful for documenting previous Streptococcal throat and skin infections: Answer ASO titer and Anti-DNase B In mass spectrometry, the "appearance potential" is defined as the: Ans...

ASCP MLS Questions and Answers Latest. What feature is most often found with patients with a splenectomy on a Wright's stained blood smear? Answer Howell-Jolly bodies Patients with antibody to the following antigen are immune to Hepatitis B: Answer Surface antigen (HbSAg) Which two of the following tests are helpful for documenting previous Streptococcal throat and skin infections: Answer ASO titer and Anti-DNase B In mass spectrometry, the "appearance potential" is defined as the: Ans...

Concerning antigen-antibody reactions, the prozone effect causes which of the following results? A. False positive B. False negative C. No reaction D. Mixed field reaction correct answer: B. False negative The following characteristics are applicable to Interferon-Gamma Release Assays (IGRAs) except: A. Can be used in patients with active tuberculosis disease symptoms B. Preferable for patients who have received a bacillus Calmette-Guérin (BCG) vaccination C. Can be used instead ...

ISBB COMPILED QUIZZESProzone phenomenon The detection of precipitation reactions depends on the presence of optimal proportions of antigen and antibody. A patient's sample contains a large amount of antibody, but the reaction in a test system containing antigen is negative. What has happened? IM Pregnancy SLE False-positive nontreponemal tests for syphilis may be due to which of the following? False Negative on FTA-ABS (prozone) Positive RPR, Negative FTA for syphilis, what i...

AAB MT IMMUNOLOGY REVIEWED TEST 2023/2024 Concerning antigen-antibody reactions, the prozone effect causes which of the following results? A. False positive B. False negative C. No reaction D. Mixed field reaction - CORRECT ANSWER-B. False negative The following characteristics are applicable to Interferon-Gamma Release Assays (IGRAs) except: A. Can be used in patients with active tuberculosis disease symptoms B. Preferable for patients who have received a bacillus Calmette-Guérin...