OSMT (Ontario Society of Medical Technologists) Practice Exam

Bactericidal solutions include:

1. a. iodine

2. b. glutaraldehyde

3. c. isopropyl alcohol

4. d. a and b

The correct answer is: d. a and b

Bactericidal solutions are agents that kill bacteria and are commonly used for disinfecting surfaces, equipment, and skin. Both iodine and glutaraldehyde are recognized for their bactericidal properties. Iodine is effective as a disinfectant and antiseptic by disrupting the function of proteins and nucleic acids in microorganisms, leading to their death. It is often used in surgical procedures and for skin disinfection. Glutaraldehyde is a potent chemical used primarily for high-level disinfection and sterilization of medical equipment. It works by cross-linking proteins in the bacterial cells, which ultimately kills the bacteria. While isopropyl alcohol can also have bactericidal effects, it is generally more effective as a bacteriostatic agent, meaning it prevents bacteria from growing rather than outright killing them. Therefore, the primary agents recognized as bactericidal in the context of this question are iodine and glutaraldehyde, supporting the correct answer.