PCAT Reading Comprehension 2

Question 1

When a passage states that a drug 'exhibits a biphasic elimination pattern,' what does this most likely mean?

Accepted Answer

The drug is eliminated in two distinct phases with different rate constants

Answer

Biphasic elimination describes two distinct phases (typically a rapid distribution phase followed by a slower elimination phase) each governed by different rate constants.

Question 2

A PCAT passage describes a study where the 'null hypothesis was rejected at p < 0.05.' What conclusion is most directly supported?

Accepted Answer

The observed difference is statistically significant

Answer

Rejecting the null hypothesis at p < 0.05 means results are statistically significant, though this does not confirm causation or clinical relevance.

Question 3

In a scientific passage, the author uses the word 'albeit' in the sentence 'The compound showed efficacy, albeit at high concentrations.' How does this word function?

Accepted Answer

It introduces a concession or qualification to the preceding claim

Answer

'Albeit' means 'even though' or 'although,' and here it qualifies the positive finding of efficacy by noting the limiting condition of high concentration.

Question 4

A passage discusses 'prospective' versus 'retrospective' cohort studies. Which best describes the key organizational difference?

Accepted Answer

Prospective studies follow participants forward in time; retrospective studies look backward at existing data

Answer

Prospective studies enroll participants and follow them forward to observe outcomes, while retrospective studies analyze data already collected in the past.

Question 5

A reading passage states: 'The mechanism by which aspirin inhibits COX-1 is irreversible, unlike ibuprofen.' What inference is best supported?

Accepted Answer

Ibuprofen's inhibition of COX-1 is reversible

Answer

The contrast word 'unlike' directly implies that ibuprofen's COX-1 inhibition differs from aspirin's irreversible inhibition, making it reversible.

PCAT - Pharmacy College Admission Test Practice Test

PCAT - Pharmacy College Admission Test Practice Test

PCAT Reading Comprehension 2