02 Mls of a 10^-4 Dilution of a Virus Preparation

question 48

Multiple Choice

0.2 mls of a 10^-4 dilution of a virus preparation yields 90 plaques.What is the number of PFU per ml in the undiluted virus preparation?

• A)9.0 * 10⁵
• B)4.5 * 10⁶
• C)4.5 * 10⁷
• D)9.0 * 10⁸

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Definitions:

Limiting Visiting

The practice of restricting the number of visitors to a particular place or patient in a healthcare setting to prevent the spread of infection or provide a quiet environment for recovery.

Cultural Practices

The behaviors, beliefs, and traditions shared by a group of people.

Autopsied

Examined post-mortem to determine the cause of death or to study the effects of diseases on the body.

Identification Band

A wristband worn by patients in healthcare settings that provides critical information such as name, date of birth, and medical record number for identification and safety.