Final answer:
The observation that should be reported immediately is the bluish tint to lips and skin, indicating cyanosis, a serious and immediate health concern. The terms 'diabetes insipidus' and 'diabetes mellitus' are related to polyuria, and urine color can indicate various health conditions.
Step-by-step explanation:
Among the observations listed, the one that should be reported immediately is C. bluish tint to lips and skin. This condition is known as cyanosis and indicates a serious lack of oxygen in the bloodstream and could be a sign of a severe respiratory or circulatory problem that requires immediate medical attention. Comparatively, the other options listed may not represent issues that are immediately life-threatening.
The outcomes of specific tests related to health conditions are as follows:
- Diabetes insipidus or diabetes mellitus would most likely be indicated by B. polyuria, which is the excretion of urine more than 2500 ml/day.
- The color of urine is determined mainly by a substance called urobilin or urochrome, which typically gives urine an amber yellow/pale yellow appearance.
- Changes in the color of urine can indicate different health conditions: For instance, red urine might suggest the presence of blood, which could be due to a urinary tract infection or kidney stone.