Answer: observational study
Explanation:
The observational studies are those studies where the researchers observes the samples or individuals of research without any intervention or manipulation.
In epidemiology, and nutritional studies the researcher observes the risk factors associated with the disease, diagnosis and treatment. The effect of a diet on the patient or volunteers can be done through observational studies.
Answer and Explanation:
Hydrocephalus is characterized by fluid accumulation in the head. The excess retention causes the cerebral ventricles to dilate, causing damage to the brain structures. Hydrocephalus can be congenital or acquired.
The congenital form is present at birth but can be identified while in utero or manifest only during the first months of life. Although it is not always possible to determine the exact cause of the disorder, it is certain that genetic and hereditary factors are involved, as well as the occurrence of infectious diseases (toxoplasmosis, cytomegalovirus, rubella, syphilis, meningitis, etc.), and drug use ( cocaine, for example) during pregnancy.
In addition to physical signs, the physician considers the patient's clinical history and the neurological evaluation. It is crucial to note that the sooner the diagnosis is made, the lower the risk of brain damage.
Answer:
The correct answer is D. It sounds more correct to me.