Final answer:
A healthcare worker might make an estimation when d. judging the correct size of a blood pressure cuff for a patient's arm, unlike other activities such as weighing or counting pills which require precise measurements.
Step-by-step explanation:
In which situation might a healthcare worker make an estimation? Among the options provided, a healthcare worker might make an estimation when judging which size blood pressure cuff will fit a patient's arm. This is because the other options involve precise measurements or counts: weighing a patient on a scale provides an exact weight, counting pills for a pill bottle is a precise number, and predicting patient recovery time, while it involves some degree of uncertainty, is based more on medical knowledge and statistics rather than estimation.
Throughout their daily tasks, medical and pharmaceutical personnel deal with various measurements and dilutions that are vital to patient care. For example, a medical technician preparing to measure a patient's blood pressure with a sphygmomanometer needs to select the correct cuff size for an accurate reading, which may require a visual estimation. Whereas, measuring the actual blood pressure is a precise activity that is critical to avoid errors that could result in harm to the patient.