11. The graphs below display the systolic blood pressure of four clients for 30 days before and 30 days after starting a new medication on March 1. What can be inferred from the information displayed in the graphs?
Answer: C
The new medication caused a decrease in some clients' systolic blood pressure.
The graphs indicate that there was a noticeable reduction in systolic blood pressure for certain clients after starting the new medication. This suggests that the medication had a positive effect on lowering blood pressure for those individuals.
A) The new medication caused more variability in the clients' systolic blood pressure.
This option is incorrect because the graphs do not illustrate increased variability in systolic blood pressure. Instead, they show a trend of reduction for some clients, rather than fluctuations or inconsistencies in their readings.
B) Some clients' systolic blood pressure tended to decrease over time.
While this option seems partially accurate, it lacks the specificity needed. The emphasis on "tended to decrease" does not adequately capture the direct impact of the medication, which specifically caused a decrease in blood pressure for some clients, as shown in the graphs.
C) The new medication caused a decrease in some clients' systolic blood pressure.
This option is correct as it directly reflects the evidence presented in the graphs. Several clients showed a clear reduction in their systolic blood pressure following the initiation of the new medication, indicating its effectiveness.
D) The systolic blood pressure for each client decreased over time.
This statement is incorrect because it implies that every client experienced a decrease in blood pressure, which is not supported by the graphs. The data reveal that only some clients benefitted from the medication, while others may not have shown the same trend.
Conclusion
The correct answer is option C, as it accurately describes the observed decrease in systolic blood pressure in some clients after starting the new medication. Options A and D misinterpret the data, while option B is too vague and does not emphasize the medication's effect, reinforcing why C is the most precise and definitive choice.