Final answer:
Tiredness is an example of subjective data, as it is based on a patient's personal feelings and cannot be directly measured, unlike objective signs such as pulse and respiratory rates. The correct option is 4.
Step-by-step explanation:
An example of subjective data is tiredness. Unlike objective data, which can be measured and confirmed through clinical observations, subjective data is based on how a patient feels and reports their experiences. Thus, tiredness is a symptom that is subjective.
It's subject to memory bias and cannot be precisely measured like pulse rate, respiratory rate, or lung sounds, which are examples of objective data that can be clinically confirmed and directly observed by a clinician.
Subjective data plays an important role in diagnosing diseases as it provides information about the symptoms experienced by the patient.
Clinicians may attempt to quantify these symptoms by using scales such as the Wong-Baker Faces pain-rating scale or through measuring physiological responses such as skin conductance fluctuations caused by sympathetic nerve activity in response to pain. The correct option is 4.