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?

Oxyhemoglobin provides less oxygen to tissues.

Insufficient platelets delay the clotting process.

Phagocytic cells are inadequate in fighting infection.

Lack of iron causes hypochromic blood cells.

Answer and Explanation

The Correct Answer is B

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.

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Correct Answer is A

Explanation

A. Gastric carcinoma:

Helicobacter pylori infection is a known risk factor for the development of gastric carcinoma, or stomach cancer. Long-term follow-up is essential for clients treated for gastric ulcers caused by H. pylori infection to monitor for any signs or symptoms of gastric malignancy, such as persistent abdominal pain, unexplained weight loss, dysphagia, or gastrointestinal bleeding. Regular surveillance with endoscopic examinations may be recommended to detect any precancerous or cancerous changes in the gastric mucosa.

B. Hypokalemia:

Hypokalemia, or low potassium levels, is not directly associated with gastric ulcers caused by H. pylori infection. While certain medications used in the treatment of gastric ulcers, such as proton pump inhibitors (PPIs) or H2-receptor antagonists, may increase the risk of hypokalemia, it is not a long-term complication specifically related to H. pylori infection.

C. Kidney stones:

Kidney stones, or nephrolithiasis, are not directly associated with gastric ulcers caused by H. pylori infection. Kidney stones typically form in the kidneys and urinary tract due to factors such as dehydration, dietary factors, or metabolic disorders. While certain conditions, such as chronic kidney disease, may be associated with gastric ulcers, kidney stones are not a typical long-term complication.

D. Celiac disease:

Celiac disease is an autoimmune disorder characterized by an abnormal immune response to gluten, a protein found in wheat, barley, and rye. It is not directly associated with gastric ulcers caused by H. pylori infection. Celiac disease primarily affects the small intestine, leading to inflammation and damage to the intestinal lining in response to gluten ingestion. While individuals with celiac disease may experience gastrointestinal symptoms, they are not at increased risk for gastric ulcers specifically related to H. pylori infection.

A. Arterial blood pH 7.5 and bicarbonate level 32 mEq/L (32 mmol/L). B. Arterial blood pH 7.42 and bicarbonate level 18 mEq/L (18 mmol/L). C. Arterial blood pH 7.25 and bicarbonate level 10 mEq/L (10 mmol/L). D. Arterial blood pH 7.38 and bicarbonate level 29 mEq/L (29 mmol/L).

Correct Answer is C

Explanation

DKA is a serious complication of diabetes mellitus characterized by hyperglycemia, ketosis, and metabolic acidosis. The laboratory results consistent with DKA include:

Elevated blood glucose level: A blood glucose level of 525 mg/dL (28 mmol/L) is significantly elevated and consistent with DKA.

Low arterial blood pH: A decreased arterial blood pH indicates acidosis, which is characteristic of DKA. Normal arterial blood pH ranges from 7.35 to 7.45.

Low bicarbonate (HCO3-) level: A low bicarbonate level indicates metabolic acidosis, which is also characteristic of DKA. Normal bicarbonate levels range from 21 to 28 mEq/L (21 to 28 mmol/L).

Among the options provided:

A) Arterial blood pH 7.5 and bicarbonate level 32 mEq/L (32 mmol/L):

This pH and bicarbonate level are indicative of alkalosis, which is not consistent with DKA.

B) Arterial blood pH 7.42 and bicarbonate level 18 mEq/L (18 mmol/L):

This pH is within the normal range, and the bicarbonate level is slightly decreased but not indicative of metabolic acidosis consistent with DKA.

C) Arterial blood pH 7.25 and bicarbonate level 10 mEq/L (10 mmol/L):

Correct. This pH is decreased, indicating acidosis, and the bicarbonate level is significantly below the normal range, consistent with metabolic acidosis characteristic of DKA.

D) Arterial blood pH 7.38 and bicarbonate level 29 mEq/L (29 mmol/L):

While the pH is within the normal range, the bicarbonate level is elevated, which is not consistent with metabolic acidosis seen in DKA.

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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?

Nursing Test Bank

Naxlex Comprehensive Predictor Exams

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Correct Answer is A

Explanation

Correct Answer is C

Explanation

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