A PMHNP would like to monitor a client's progress in anxiety symptom reduction over time using a clinician-administered anxiety rating scale. Which of the following is the most commonly used clinician-administered anxiety rating scale?

Choice A reason: The Beck Anxiety Inventory is self-reported, not clinician-administered. Choice B reason: The GAD-7 is also a self-report tool, commonly used in primary care, but not clinician-administered. Choice C reason: This is correct. The Hamilton Anxiety Scale (HAM-A) is the most widely used clinician-administered scale for assessing severity of anxiety symptoms and monitoring treatment response over time. Choice D reason: The Liebowitz Social Anxiety Scale assesses social anxiety specifically and can be clinician-administered, but it is not the most general scale for overall anxiety severity.