The major diagnose which should not be done at the time of medical examination is-

Correct option is C

During a medical examination, the primary focus is typically on understanding the individual's health status and relevant factors that could impact their well-being. Here's a breakdown of each option:
(a) Present Health Status:
This is an essential part of a medical examination. Understanding the current health status of the individual, including any symptoms, conditions, or illnesses they might be experiencing, is crucial for an accurate diagnosis.
(b) Prolonged Illness Record:
A record of any prolonged illnesses the individual has had is important as it helps doctors understand the patient’s medical history, which can significantly impact their current health and any future treatments or diagnoses.
(c) Environmental Record:
This is not typically a part of a standard medical examination. While the environment can affect a person’s health (e.g., pollution, living conditions), it is generally not a diagnostic focus during a routine examination. Environmental factors may be considered in specific cases, but they aren't part of the immediate examination process.
(d) Family Health Status:
Family medical history is very important, as many health conditions are hereditary. This record can provide insight into potential genetic risks and is commonly taken during a medical exam.