Final answer:
The best area to assess a dark-skinned client for petechiae is the oral mucosa, due to its lighter pigmentation which allows for clearer visibility of hemorrhagic spots. Option b.
Step-by-step explanation:
When assessing a dark-skinned client for the presence of petechiae, which are small lesions caused by bleeding under the skin, visibility can be challenging due to skin pigmentation. The best areas to check for petechiae in a dark-skinned client would be less pigmented and thus more revealing of subtle color changes. Among the options provided:
- Sclera: Not ideal for detecting petechiae.
- Oral mucosa: A very suitable location, as the mucous membranes can show petechiae clearly despite skin tone.
- Soles of the foot: Pigmentation can vary, so it might not be the best area to check.
- Palms of the hand: Similar to the soles, pigmentation can make detection difficult.
Therefore, the oral mucosa is the best area to assess for petechiae in a dark-skinned client due to its typically lighter pigmentation and clearer contrast against hemorrhagic spots.