Inhalation of prescribed bronchodilator medications should take placed before which of the following?

A physical therapist (PT) is working with a patient admitted to the medical floor of a hospital with a diagnosis of pneumonia of the right lower lobe. The PT decided that the patient would benefit from postural drainage with vibration. Vibration is applied throughout exhalation concurrent with:

Which of the following responses accurately describes postural drainage?

Crown-rump length is used to estimate fetal age, particularly in which trimester?

If you wanted to sample fetal blood, which of the following would you use?

High levels of alpha-fetoprotein in the amniotic fluid may indicate defects in which of the following? 

The intraembryonic coelom that initially forms cranial to the oropharyngeal membrane becomes the

Oogonia divide by mitosis between puberty and menopause.

Which of the following may be a cause of polyhydramnios?

What is the difference between primary chorionic villi and secondary chorionic villi?