The nurse is explaining the underlying cause of bruising with a client who is recently diagnosed with acute leukemia. Which pathophysiology is a result of the myeloblastic dysfunction of leukemia?

Acute leukemia, including acute myeloid leukemia (AML), involves the proliferation of abnormal myeloblasts (immature white blood cells) in the bone marrow, leading to decreased production of normal blood cells. Here's the breakdown of the pathophysiology contributing to bruising in acute leukemia:

A) Oxyhemoglobin provides less oxygen to tissues:

Oxyhemoglobin refers to hemoglobin bound to oxygen, and its role is in oxygen transport, not in the process of bruising. Therefore, this option is not directly related to the pathophysiology of bruising in acute leukemia.

B) Insufficient platelets delay the clotting process:

Correct. Thrombocytopenia, or low platelet count, is a common complication of acute leukemia due to the replacement of normal bone marrow cells with leukemia cells, leading to inadequate production of platelets. Platelets play a crucial role in hemostasis and clot formation. Insufficient platelets result in delayed clotting, leading to easy bruising and bleeding tendencies in patients with acute leukemia.

C) Phagocytic cells are inadequate in fighting infection:

Leukopenia, or low white blood cell count, can occur in acute leukemia due to suppression of normal hematopoiesis by leukemia cells in the bone marrow. While leukopenia predisposes patients to infections due to impaired immune function, it is not directly related to the pathophysiology of bruising.

D) Lack of iron causes hypochromic blood cells:

Iron deficiency anemia can result in hypochromic red blood cells, but this is not typically associated with the pathophysiology of bruising in acute leukemia. Anemia may contribute to other symptoms such as fatigue and pallor, but bruising primarily results from thrombocytopenia-induced clotting abnormalities.

A) Small, skin-colored, pedunculated papules in areas of skin folds and on other areas as skin tags:

This description is more characteristic of acrochordons (skin tags), which are benign skin growths often found in skin folds. Skin tags are typically not associated with acne vulgaris.

B) Hyperpigmented areas that vary in form and color and are slightly elevated from the skin:

This description may be indicative of post-inflammatory hyperpigmentation, which can occur after resolution of acne lesions. However, it does not represent the primary pathological findings observed in acne vulgaris.

C) Hyperactive sebaceous areas forming comedones, papules, pustules on the face, neck, and upper back:

Correct. Acne vulgaris is characterized by hyperactive sebaceous glands, leading to the formation of comedones (blackheads and whiteheads), papules, and pustules. These lesions commonly occur on the face, neck, and upper back due to the high density of sebaceous glands in these areas.

D) Sharply demarcated silvery scaling plaques with underlying redness on the elbows and knees:

This description is more indicative of psoriasis, a chronic autoimmune skin condition characterized by silvery scaling plaques and inflammation. Psoriasis typically affects extensor surfaces such as the elbows and knees, rather than the areas commonly affected by acne vulgaris.