Group B Strep that an infant is exposed to in the vaginal canal can cause neonatal fatalities in 48 hours, and the current test for diagnosis can take 24-48 hours
A laboratory has developed a 6-hour antigen assay to diagnose the disease. The lab ran this test on 2000 samples. Using the gold standard assay of culture, 500 of these samples were found to be true positives and 1500 true negatives. When tested by the new antigen assay, 450 of the true positives tested positive, and 1485 of the negative samples tested negative.
What is the specificity of this antigen assay?
a.
96.75%
b.
90.00%
c.
99.00%
d.
95.00%
C
You might also like to view...
Describe three phases following cocaine abstinence.
What will be an ideal response?
Macrolide antibiotics may interact and/or potentiate which of the following, possibly resulting in toxicity?
a. General anesthetics or neuromuscular blocking agents b. Alcohol and loop diuretics c. Theophylline, triazolam (Halcion), warfarin, digoxin, verapamil, and fluconazole (Diflucan) d. Other ototoxic drugs
Most dreaming occurs during non-rapid eye movement (NREM) sleep.
Answer the following statement true (T) or false (F)
Hakim walked into his house one summer day and discovered that the air conditioning was not working
He did not get upset because the last time this happened, he found a great repair company that was fast and affordable; he also had a couple of fans that he used to keep cool until the AC was restored. Hakim did not experience excessive stress because A) his appraisal of the stressor told him he could cope with it. B) he had a plan in place due to his last experience with the repair company. C) he has low self-esteem and knew he could not fix the AC himself. D) he has a Type A personality.