LabCE Test 1 (first half) question and answers 2023 updated to pass

LabCE Test 1 (first half) question and answers 2023 updated to passThe antibody most frequently present in systemic lupus erythematosus (SLE) patients is directed against: - correct answer Nuclear antigen (used in ANA testing) The MOST accurate observation about osmotic pressure is that it is: - correct answer Proportional to concentration of solute particles (osmotic pressure is only dependent on the molar concentration) Direct examination of treponemes can be performed by: - correct answer Darkfield microscopy examination (direct observation of the spirochetes from an active syphilitic lesion) Lower reference limit for semen volume: - correct answer 1.5mL (normal range is 2-5mL) After irradiating a unit of packed red blood cells, how is the expiration date affected? - correct answer The expiration date shortens to 28 days from the date of irradiation or the original expiration date, whichever is first. What condition would have macrocytic red cells? - correct answer Liver disease and Vitamin B12 deficiency The pairing or annealing of two strands of DNA is termed: - correct answer Hybridization most prevalent blood type found in the United States? - correct answer O positive All of the associations listed below between bacteria and their expected colony morphology on 5% sheep blood agar are correct, EXCEPT: A. Pseudomonas stutzeri - dry, wrinkled, gray-yellow colonies B. Chryseobacterium (Flavobacterium) meningosepticum - yellow colonies