Your Patient Has a Normal Helper T Cell Count,but Very

question 3

Multiple Choice

Your patient has a normal helper T cell count,but very little helper T cell activity.Which of the following scenarios may explain this observation?

• A)She has a mutation in her MHC II proteins making them ineffective.
• B)She has low antibody activity.
• C)She has a mutation in the gene for perforin and makes an ineffective version of this molecule.
• D)She is HIV positive.
• E)None of these answers would explain the observations seen in this patient.

---

Definitions:

Purchase Discounts Lost

The additional expense a company incurs when it fails to take advantage of discounts offered by suppliers for early payment.

Voucher Register

A voucher register is a record keeping system where vouchers are indexed and stored, detailing the payment of a transaction.

Vouchers Payable

A liability account that records the obligation to pay for goods or services that have been received, but not yet paid for.

Purchases

Transactions involving the buying of goods and services for business operations or resale.