After the nurse obtains a blood sample from a client's right radial arterial client reports a sudden onset of pain at the arterial line insertion site. The nurse recognizes which physiological effect may be inducing the sudden pain?

Elevation in blood pressure.

Vasospasm at insertion site.

Clot in the arterial catheter.

Air lock in the transducer.

Answer and Explanation

The Correct Answer is B

A) Elevation in blood pressure:

While elevation in blood pressure could potentially cause discomfort at the arterial line insertion site, it is not the most likely physiological effect to induce sudden pain in this scenario. Blood pressure elevation would typically cause generalized symptoms rather than localized pain at the insertion site.

B) Vasospasm at insertion site:

Correct. Vasospasm refers to the sudden constriction of blood vessels, leading to reduced blood flow. It can occur in response to arterial puncture or manipulation during arterial line insertion, resulting in sudden pain at the insertion site.

C) Clot in the arterial catheter:

A clot in the arterial catheter could potentially cause obstruction and affect blood flow, but it is less likely to induce sudden pain at the insertion site unless there is associated ischemia or tissue damage.

D) Air lock in the transducer:

An air lock in the transducer could disrupt pressure monitoring but is not typically associated with sudden pain at the insertion site. It may lead to inaccurate pressure readings rather than localized pain.

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Correct Answer is C

Explanation

Chronic osteoarthritis (OA) is a degenerative joint disease characterized by the breakdown of joint cartilage and underlying bone changes. The pathophysiological process of OA involves various factors contributing to joint pain and inflammation. Here's why option C is the correct choice:

A) Inflammation results from deposition of crystals in the synovial space of joints producing irritation:

This statement is more characteristic of crystal-induced arthritis, such as gout or pseudogout, where crystals (e.g., urate or calcium pyrophosphate crystals) deposit in the joints and cause acute inflammation and irritation. While inflammation may occur in OA, it is primarily a result of mechanical stress and cartilage degradation rather than crystal deposition.

B) Inflammation is caused by immune complex and autoantibody deposition in connective tissue:

This statement is more characteristic of autoimmune diseases such as rheumatoid arthritis (RA), where immune complex deposition and autoantibody production lead to chronic inflammation and joint damage. In OA, inflammation is not primarily mediated by immune complex deposition or autoantibodies.

C) Joint inflammation occurs when chondrocyte injury destroys joint cartilage, producing osteophytes:

Correct. In osteoarthritis, joint inflammation occurs as a result of chondrocyte injury and cartilage breakdown. Over time, the degenerative changes in the joint lead to the formation of osteophytes (bone spurs) at the joint margins. These changes can irritate surrounding tissues, including the synovium, ligaments, and tendons, contributing to joint pain and inflammation.

D) Joint destruction happens due to an autoimmune inflammation involving IgG response to an antigen:

This statement is more characteristic of autoimmune arthritis, such as rheumatoid arthritis (RA), where autoantibodies (e.g., rheumatoid factor, anti-citrullinated protein antibodies) target joint tissues, leading to chronic inflammation and joint destruction. In OA, joint destruction primarily results from mechanical stress and wear-and-tear on the joint structures rather than autoimmune mechanisms.

A. Nerve degeneration due to chronic gastric reflux. B. Volvulus that occurred during an appendectomy. C. Esophagitis due to reflux of gastric contents. D. A history of having Helicobacter pylori infection.

Correct Answer is B

Explanation

A) Nerve degeneration due to chronic gastric reflux:

Nerve degeneration due to chronic gastric reflux may lead to conditions such as gastroesophageal reflux disease (GERD) or esophagitis, but it is not directly related to the clinical presentation of intestinal obstruction. Symptoms of GERD or esophagitis typically include heartburn, regurgitation, and dysphagia rather than severe, colicky abdominal pain, nausea, vomiting, and abdominal distention.

B) Volvulus that occurred during an appendectomy:

Correct. Volvulus refers to the twisting of a segment of the intestine around its mesentery, leading to obstruction of the bowel lumen and compromising blood flow to the affected area. In this scenario, the client's clinical presentation of severe, colicky abdominal pain, nausea, vomiting, and abdominal distention is consistent with symptoms of intestinal obstruction, which can occur secondary to volvulus. Volvulus may result from various factors, including prior abdominal surgeries, such as an appendectomy, leading to abnormal positioning or adhesions within the abdomen.

C) Esophagitis due to reflux of gastric contents:

Esophagitis due to reflux of gastric contents can cause symptoms such as heartburn, chest pain, and difficulty swallowing, but it is not typically associated with severe, colicky abdominal pain, nausea, vomiting, and abdominal distention characteristic of intestinal obstruction.

D) A history of having Helicobacter pylori infection:

Helicobacter pylori infection is associated with conditions such as peptic ulcer disease and gastritis, but it is not directly related to the clinical presentation of intestinal obstruction. Symptoms of H. pylori infection may include abdominal pain, nausea, and vomiting, but they are not typically colicky and severe as those seen in intestinal obstruction.

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After the nurse obtains a blood sample from a client's right radial arterial client reports a sudden onset of pain at the arterial line insertion site. The nurse recognizes which physiological effect may be inducing the sudden pain?

Nursing Test Bank

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