A nurse is performing an assessment on the fingers and toes of a patient.What finding is consistent with clubbing?

Choice A rationaleA decreased angle between the cuticles and the nails is not indicative of clubbing. In fact, it is often associated with healthy nails. Clubbing is recognized by changes that increase the angle between the nail bed and the cuticle.Choice B rationaleAn upward curving of the nails, known as koilonychia or spoon nails, is not characteristic of clubbing but is often associated with iron-deficiency anemia. Hence, this answer is incorrect for clubbing.Choice C rationaleBlue nails indicate cyanosis, which is related to a lack of oxygen in the blood. This is distinct from clubbing, which is more about the shape and angle of the nails rather than their color.Choice D rationaleClubbing is recognized by an increase in the angle between the nail bed and the cuticle, often greater than 160 degrees. This is a hallmark feature and the correct indicator of clubbing.