Final answer:
An adult blood pressure reading of 160/100 is considered abnormal, as it indicates hypertension, which is much higher than the normal range of 90/60 to 120/80 mm Hg.
Step-by-step explanation:
The abnormal vital sign among the choices provided is c. adult blood pressure of 160/100. This value is considered high and falls into the category of hypertension. For context, normal adult blood pressure is typically between 90/60 and 120/80 mm Hg. Therefore, a reading of 160/100 mm Hg significantly exceeds the normal range. Adult pulse of 75 BPM is within the normal range of 60-100 beats per minute for a resting heart rate. Pediatric pulse of 110 BPM can be considered normal for children as their heart rates are usually faster than adults. Lastly, an oral temperature of 97 degrees Fahrenheit is slightly below the average normal temperature (98.6 degrees Fahrenheit) but is not abnormal. It's important for individuals with high blood pressure, like the one mentioned, to consult a healthcare provider to manage the risk of heart disease and other complications.