AMCA Medical Assistant Practice Test 2

Which of the type on an ECG reflects ventricular heart depolarization? - Answer- QRS wave What is the universal standard speed for recording an ECG? - Answer- 25mm/second What is the purpose of performing a specific gravity on a urine sample? - Answer- It measures its density when compared with distilled water All of the following demonstrate quality control. What is the exception? - Answer- Treating every customer properly What is the pacemaker of the heart? - Answer- SA node (sinoatrial node) Which of the following commonly used disinfectants is used in the medical field and found to be effective against bloodborne pathogens? - Answer- Bleach Which of the following is the appropriate method for disposing of contaminated needles? - Answer- Place it in bio-hazard sharps container located in the room where used What is the most important step in achieving medical asepsis? - Answer- Washing Hands Which of the following solutions will help prevent the transmission of hepatitis? - Answer- Household bleach How often should quality control tests be done? - Answer- Daily Which organization developed the guidelines for universal precautions? - Answer- CDC According to OSHA, medical personnel must wear PPE when they have contact with which of the following? - Answer- Blood To detect pregnancy, either urine or blood serum is tested for the presence of which of the following? - Answer- HCG hormone A bacteriological culture needs to be performed on a collected urine specimen. Which of the following instructions best describe what your patient should do? - Answer- Void a specimen midstream in a sterile cup A urine specimen was collected and then left standing for more than 1 hour. Bacteria grew, and the pH of the urine became which of the following? - Answer- Alkaline Wh