Vertex presentations mean the fetus is head-down in the birth canal. The fetus' head is presenting first.
Since, the options have not been given the question is incomplete. The complete question is as follows:
The people of Treasure Island Beach have been struck with a rash that seems to be infecting almost everyone in town. The staff of the hospital is working to design a study of this mysterious disease. They decide to do a cross-sectional study because cross-sectional or prevalence studies are known for
1. providing the information necessary to test for the most effective treatment of an illness or condition.
2. concurrently describing characteristics and health outcomes at one specific point in time.
3. supplying entire populations with therapeutic interventions on an epidemiologically sound basis.
4. quickly identifying cause and effect relationships that can serve as a basis for treatment.
Answer: 2. concurrently describing characteristics and health outcomes at one specific point in time.
Explanation:
The cross-section or prevalence studies are used for medical, biology and social science disciplines. These studies analyze the data taken from the representative subset of the population at specific intervals of time or at one specific point of time. This can be used to study the effect of disease over different point of time.
According to the given situation, the cross-sectional study should be performed on subjects affected by the rash to determine the health outcomes at different or specific point of time.
So Sam has the disorder and one of his parents are likely the carrier since Sam is their son. That’s all I can provide since that’s all the info I was given.
