Which of the following is NOT a presumptive sign of Pulmonary TB in children?

In the context of identifying presumptive signs of pulmonary tuberculosis (TB) in children, the presence of "none of the choices" indicates that all the other listed options are indeed considered presumptive signs of the disease.

Coughing or wheezing lasting two weeks or more is a strong indication of pulmonary issues, including tuberculosis. Given that children cannot always express their symptoms as well as adults, a persistent cough or wheeze in a child should prompt further investigation for possible TB.

Unexplained weight loss after nutritional therapy is another critical indicator. If children are not responding to nutritional interventions and continue to lose weight, it may suggest an underlying condition, such as TB, affecting their health.

Finally, an unexplained fever lasting two weeks or longer is another significant sign. Prolonged fever without an identifiable cause can be indicative of infectious diseases, including TB, particularly in children where their immune response may manifest differently.

Since all of these signs—coughing, weight loss, and fever—are consistent with potential tuberculosis manifestations, the correct understanding is encapsulated in the option stating that none of these choices are non-presumptive signs of pulmonary TB in children. Thus, "none of the choices" is the appropriate answer, conveying that each