CMA Pharmacology for Medical Assistants 5

Question 1

When reconstituting a powdered antibiotic for injection, which step must be performed first?

Accepted Answer

Verify the diluent type and volume specified in the package insert

Answer

The package insert specifies the correct diluent (e.g., sterile water, normal saline) and volume to ensure proper concentration and stability.

Question 2

Which of the following is the correct interpretation of the prescription abbreviation 'gtt'?

Accepted Answer

Drops

Answer

GTT (guttae) is the Latin abbreviation for drops, commonly used for ophthalmic or otic medications.

Question 3

A patient taking lithium for bipolar disorder reports nausea, tremors, and confusion. What should the medical assistant suspect?

Accepted Answer

Signs of lithium toxicity

Answer

Nausea, tremors, and confusion are classic early signs of lithium toxicity, which can progress to seizures and cardiac arrhythmias if untreated.

Question 4

Which type of drug interaction occurs when one drug blocks the receptor site of another drug, reducing its effect?

Accepted Answer

Antagonism

Answer

Antagonism occurs when one drug occupies a receptor and blocks another drug from binding, reducing or eliminating the second drug's effect.

Question 5

An elderly patient is prescribed a new medication. Why should the medical assistant alert the physician to review the dosage carefully?

Accepted Answer

Elderly patients have decreased kidney/liver function and may require lower doses

Answer

Aging decreases hepatic and renal function, slowing drug metabolism and excretion, which increases the risk of drug accumulation and toxicity.

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