With normal transvaginal sonography, cardiac activity should be demonstrated when the CRL exceeds ______ mm.

Frontal bones of the cranium that collapse inward describes which one of the following abnormalities?

Which one of the following statements about a gastroschisis is false?

Which one of the following measurements is the most accurate for determining gestational age in the first trimester?

The most common benign tumor of the ovary is which one of the following masses?

Conditions predisposing a fetus to cord prolapse include all of the following except:

While suctioning a patient their heart rate decreases from 90 bpm to 60 bpm, which of the following is most likely the cause of the change?  

A physician places a patient in respiratory failure on 100% 02. To avoid the hazards of 02 toxicity, you would recommend that every effort be made to reduce the FI02 to less than 50% within what time frame?

A patient postoperative for a laryngectomy has thick secretions that are increasingly difficult to suction or aspirate. The patient is currently receiving 40% oxygen with a large-volume cool aerosol. The respiratory therapist should recommend

Stimulation of the sympathetic nervous system would cause which of the following? 1. Bronchodilation2. Bronchoconstriction3. Increased heart rate4. Decreased heart rate5. Decreased bronchial secretions