The nurse observes the presence of brittle, concave curves to the nails of a client on assessment. Which information should the nurse obtain from the client that may explain the appearance of the nails?

Choice A rationale Diabetes mellitus can lead to various complications affecting the nails, such as yellowing or thickening due to poor circulation and infections, but it is not typically associated with brittle, concave (spoon-shaped) nails. Choice B rationale Iron deficiency anemia is often associated with brittle, spoon-shaped (concave) nails, known as koilonychia. This condition affects the oxygen-carrying capacity of the blood, leading to changes in the nail beds. Choice C rationale Coronary heart disease can lead to changes in the nails due to poor circulation, but it is not commonly associated with brittle, concave nails. Other nail changes might include clubbing or cyanosis. Choice D rationale Recent candida infection can affect the nails, causing them to become discolored, thickened, or separated from the nail bed, but it does not typically cause the nails to become brittle and concave.