Ascp Mls 160 Questions With Complete Solutions

What feature is most often found with patients with a splenectomy on a Wright's stained blood smear? Correct Answer: Howell-Jolly bodies Patients with antibody to the following antigen are immune to Hepatitis B: Correct Answer: Surface antigen (HbSAg) Which two of the following tests are helpful for documenting previous Streptococcal throat and skin infections: Correct Answer: ASO titer and Anti-DNase B In mass spectrometry, the "appearance potential" is defined as the: Correct Answer: Minimum energy required for the appearance of a particular fragment ion in mass spectrum What is generally accepted as the lower threshold value for semen pH from fertile males? Correct Answer: 7.2 Coulometry: Correct Answer: An automated method for measuring chloride which generates silver ions in the reaction Erythroleukemia: Correct Answer: Also known as Acute Myelogenous Leukemia type M6. This type is associated with either the presence of both erythroid and myeloid precursors OR strictly erythroid precursors. Myelomonocytic leukemia Correct Answer: Is associated with an increase in myeloid and monocytic cell precursors, but not red blood cell precursors Species that are Lysine (+), arginine (=) and ornithine (+): Correct Answer: Enterobacter aerogenes, Edwardsiella species and most Serratia species Lysine reaction for all Citrobacter: Correct Answer: Negative Key identifying characteristic for Pantoa (Enterobacter) agglomerans: Correct Answer: negative reactions for the three decarboxylases commonly tested ( Lysine, arginine and ornithine) Which organism is MOST likely responsible for septic reactions associated with Red Blood Cell transfusions? Correct Answer: Yersina entercolitica is most likely responsible for septic reactions in transfusions of Red Blood Cells. This organism is usually acquired by ingestion of contaminated food and causes mild symptoms of abdominal