How Often Must the Partial Thromboplastin Time (PTT)reference Interval Be

question 26

Multiple Choice

How often must the partial thromboplastin time (PTT) reference interval be determined?

• A)only when both the normal and abnormal controls are outside their acceptable limits
• B)at least every 6 months
• C)with each new lot of reagent
• D)only when the normal control is outside its acceptable limits

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Definitions:

Trade-In Value

The amount credited to a buyer when they provide a used item as part of the payment for a new item, often used in automobile and appliance transactions.

Accumulated Depreciation

The cumulative depreciation expense charged for a fixed asset since its initial use.

Fair Market Value

The price at which an asset would change hands between a willing buyer and seller, neither being under any compulsion to buy or sell and both having reasonable knowledge of the relevant facts.

Accumulated Depreciation

The total amount of depreciation expense that has been recorded against a fixed asset, over its useful life, up to the current date.