When using the conversion factor, 1 in = 2.54 cm, how many significant figures are you limited to?

Which statement can be said with certainty about a sample that can be physically separated?

A lab thermometer has graduation marks in one degree increments and the alcohol level on the thermometer is exactly between the 25 and 26 degree Celsius marks. We should properly report the temperature measurement as:

When using the conversion factor, 1000 mL = 1L, how many significant figures are you limited to?

How many total electrons are in Sr2+?

When placing a chest tube the AGACNP knows that the tube should be placed following the: 

Which of the following is the most appropriate site for placement of a chest tube in a patient with a left hemothorax? 

What division of the National Park Service does Dan Kerber work for?

A 64-year-old woman with emphysema (forced expiratory volume in one second (FEV1) of 1.35) is found to have a 1 cm solitary pulmonary nodule in the peripheral left lower lobe on routine chest x-ray. The only other abnormality on the film is hyperinflated lung fields. Chest computed tomography scan reveals that the lesion abuts the pleura and has no evidence of calcification within it. What is the most appropriate initial management?

The 24-year-old patient is admitted after a drug overdose. She was intubated in the field for unresponsiveness. In the emergency department, her initial blood pressure is 100/70 mm Hg, for pulse is 65 beats/min, and her respiratory rate is 6 bpm. She has pinpoint pupils, diffuse crackles on chest exam, and the toxicology screen positive for cocaine, methadone, and diazepam. Which of the following ventilator settings would be the most appropriate given her clinical presentation?