1. Sensitivity, Specificity and Predictive ValuesThe table below shows the results from looking at the diagnostic accuracy of a new rapid test for HIV in 2,387subjects, compared to the Reference standard ELISA test. The rows of the table represent the testresult and the columns the true disease status (as confirmed by ELISA).ELISA testNew Rapid testHIV (+) HIV (-)Test +165562Test-251635Complete this Table:SolutionFinal answer (Round off up to 2decimal places) :( 1 pt)Items(no short cut ):(2 pts)Specificity of the New Rapid testFor HIVSensitivity of the New Rapid testFor HIVPositive Predictive Value of the newrapid test for HIVVNegative Predictive Value of the newrapid test for HIVInterpret the computed values. (2 pts each)

Interpretations of test: Specificity: it tells about those who don't have the disease. Sensitivity:…

Answered: Specificity of the New Rapid test For…

Phlebotomy Essentials

6th Edition

ISBN:9781451194524

Author:Ruth McCall, Cathee M. Tankersley MT(ASCP)

Publisher:Ruth McCall, Cathee M. Tankersley MT(ASCP)

Chapter1: Phlebotomy: Past And Present And The Healthcare Setting

Section: Chapter Questions

Problem 1SRQ

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16. The Type A Transferase enzyme, attaches N-acetylgalactosamine (GalNAc) to H-antigen epitopes; the Type B Transferase enzyme instead transfers galactose (Gal) to the H-antigen. Individuals with Type A blood thus have at minimum one copy of the active Type A Transferase, those with Type B have at minimum one copy of the active Type B Transferase, those with Type AB have one active copy of each, those with Type O have neither. Imagine an AB individual who acquires a mutation in their Type B Transferase gene that allows it to be active with either Gal or GalNAc. Make sure to include a brief justification for your answer to each question below. a. What blood type antigens would this individual express? b. If this individual had a child with a normal O partner, what possible blood type antigens could the child express? c. If this individual had a child with a homozygous dominant B partner (BB), what possible blood type antigens could the child express?
Please note: Question 1 and 2 on the first image have been answered. It is there for reference in order to answer the main question which is Question 3. Thank you.
I | I I 1 I | 1. What is the single most effective immunoassay used for screening for HIV infection? 2. Cite the different modes of transmission of HIV. 3. Cite other immunoserological assays for HIV. Specify the reactions involved and the expected results.
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When will the antibody titer test most likely yield a positive result? On the day the symptom/s occurred 3 days after the onset of symptom/s O At least 7 days after the onset of symptom/s O 5 days after the onset of symptom/s O In the presymptomatic stage
Compare and contrast herd immunity from vaccination between pneumococcal pneumonia and COVID-19.
Explain why IgM has a stronger power of agglutination than antibodies of any other class.
Because they sometimes cross-react with antigens other than those being tested for, polyclonal antibodies lack 1. reactivity 2. sensitivity 3. specificity 4. antigenicity
We have to isolate hemagglutinative virus from nasopharynx of 9 years old boy. 1.What is a cheap sensitive system can we use? Characterize the steps of a given sensitive system using. What kind of test can be used to detect the virus in this sensitive system?
1) SDS PAGE gels can be probed with NBT/BCIP to perform an immunoblot true/ false 2) the direction of migration of protiens through a matrix is due to most proteins in natur having a net negative charge true/false 3) PBST is a buffer that is used for blocking the membrane during immunoblotting. true/false 4) the buffer used during for transferring proteins to nitrocellulose methanol. true/false 7) The size of the pores of a polyacrylamide gel dcreases as concentrations of polyacrylamide increases. True or false 10) The secondary antibody used in laboratory for western blotting is conjugated to which enzyme A) Alkaline decarboxylase B) GAPDH C) Alkaline Phosphatase D) Horseeradish peroxide 13) In protien electrophroresis, what reagent present in the sample buffer is used to eliminate difference in the charge densities of protein A) SDS B) 2- mercaptoethanol C) Tris-HCL pH6.8 D) Tris- HCL PH 8.8
Calculate Vaccination Coverage needed to attain herd immunity for Density-dependent and Frequency-dependent modes of transmission given parameters values shown. β = 0.002 S = 500 y = 0.2. R0 =5, and threshold density of susceptible individuals is 50.
How do the Pfizer and moderna vaccines differ from other traditionally produced vacines.

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Specificity of the New Rapid test For HIV Sensitivity of the New Rapid test For HIV Positive Predictive Value of the new rapid test for HIVV Negative Predictive Value of the new rapid test for HIVV