50. The PHQ-2 is a brief, validated screening tool for depression. Which of the following statements is true regarding its clinical use?

The elimination of nitrogenous wastes from body fluids is regulated by the ________ system.

How many orbitals are in a 4p sublevel?  (n=4, l=1)

The Lewis structure shows a molecule with one triple bond.  How many sigma and pi bonds does this molecule have?  How many sigma and pi bonds does this molecule have? 

Which of the following is a molecular (covalent) compound that is not composed of ions?

Which type of dilators is used for male urethral dilation?

Which of the following instruments would be used to remove plaque during a carotid endarterectomy?

Which of the following instruments would be used on subcutaneous tissue?

Which of the following instruments is a non-crushing vascular clamp?

Which of the following instruments is a vaginal speculum?