All tarsal bones have a single ossification center.?

A set of results that fails the Rule of Three may indicate that

A) the patient has a pathological condition. B) the ratio of white blood cells to red blood cells is abnormal. C) the red blood cells in the sample have all lysed. D) the volume of blood obtained from the patient is insufficient for analysis.

An 83-year-old woman has fallen down the basement stairs. She complains of left hip pain and rates it 10/10. Since the patient is downstairs, you immediately recognize the need for assistance in extricating her to the ambulance. As you start the primary assessment, you note a large dog at the top of the stairs growling. At this time, what is your primary concern?

A) Pain B) Dog C) Need for additional help D) Airway