RN exams medical-surgical practice questions set 21

Correct answer:

Vocal cord nodules are benign growths on the vocal cords, typically caused by vocal abuse or misuse. The most appropriate intervention for managing vocal cord nodules is voice therapy and vocal hygiene education. Voice therapy aims to correct vocal habits and techniques that contribute to the formation of nodules, while vocal hygiene education focuses on maintaining vocal health through proper hydration, rest, and avoiding behaviors that strain the vocal cords. These interventions have been shown to be effective in reducing and eliminating vocal cord nodules without the need for surgical intervention. Surgery, such as vocal cord polypectomy or injection with corticosteroids, is typically reserved for cases that do not respond to conservative management or if there are significant complications. Partial laryngectomy is a more extensive surgical procedure that is not typically indicated for vocal cord nodules.

Correct answer:

The correct answer is D: Is not necessary if the CT-scan of the chest is normal. Rationale: 1. The patient presents with signs of possible aortic injury (e.g., widened mediastinum) after a high-speed motor vehicle collision. 2. CT scan of the chest is a sensitive imaging modality for detecting aortic injuries. 3. If the CT scan of the chest is normal, it effectively rules out aortic injury in this scenario. 4. Performing contrast angiography would be unnecessary if the initial CT scan is normal, as it would not provide additional diagnostic value and expose the patient to further risks. Summary: A: "Is not indicated" - Incorrect, as imaging is necessary to assess for aortic injury in this high-risk scenario. B: Should be performed after CT scan of the chest - Incorrect, as contrast angiography is not necessary if the CT scan is normal. C: Is positive for aortic rupture in 80% of similar cases -

Correct answer:

The correct answer is A: cephalohematoma. Cephalohematoma is a subperiosteal collection of blood that occurs due to trauma during delivery, such as with forceps assistance. The swelling is sharply demarcated because it is bound by suture lines of the skull bones. In this case, the parietal bones are affected, while the other skull bones are not involved. The absence of edema in the neck and the infant's good activity and feeding suggest no significant underlying issues. Summary: B: Subgaleal hemorrhage involves bleeding into the potential space between the periosteum and the skull, resulting in diffuse swelling extending beyond suture lines. C: Caput succedaneum is soft tissue swelling that crosses suture lines and involves the scalp, not just the parietal bones. D: Skull fracture would present with additional signs such as crepitus, misshapen skull, or neurological deficits, which are not mentioned

Correct answer:

The patient's presentation of recurrent episodes of postnasal drip, chronic cough, halitosis, and foul-smelling, yellowish discharge from the middle meatus is highly suggestive of chronic rhinosinusitis. The presence of nasal polyps further supports this diagnosis. Chronic rhinosinusitis with nasal polyps is characterized by inflammation of the paranasal sinuses, leading to symptoms such as nasal congestion, postnasal drip, cough, and a reduced sense of smell. The yellowish discharge and foul odor are typical findings in cases of chronic rhinosinusitis with secondary bacterial infection. Nasal endoscopy may reveal edematous nasal mucosa and polyps obstructing the middle meatus, contributing to the symptoms described by the patient. Management typically involves a combination of medical therapies such as intranasal corticosteroids, saline irrigation, and antibiotics, and in some cases, surgical intervention

Correct answer:

The correct answer is A because malignant melanoma is indeed a very rapid growing and aggressive cancer. This information is crucial for the client to understand the seriousness of the diagnosis and the need for prompt and aggressive treatment. Explanation of why other choices are incorrect: B: This cancer usually extends wide and deep but rarely metastasize - This statement is incorrect because malignant melanoma is known to have a high potential for metastasis. C: This cancer is mainly contained to the head and neck area - This statement is incorrect because melanoma can occur on any part of the body, not just limited to the head and neck. D: Your cancer has grown into the deep tissues and quite likely into lymph nodes (stage 3B) - While this choice provides some accurate information about the staging of the cancer, it does not fully address the client's question about the nature of malignant melanoma.

Correct answer:

The main function of the Membrane Attack Complex (MAC) is to lyse pathogens by creating pores in their cell membranes. First, MAC assembles on the pathogen's surface. Then, it forms a pore, disrupting the pathogen's membrane integrity, leading to cell lysis. This mechanism is crucial for the immune system to effectively eliminate pathogens. Choice A (Recruitment of neutrophils) is incorrect because MAC is not involved in recruiting neutrophils. Neutrophil recruitment is typically mediated by other signaling molecules. Choice B (Phagocytosis activation) is incorrect as MAC does not directly activate phagocytosis. Phagocytosis is a separate process involving the engulfment of pathogens by immune cells. Choice D (Enhancing cytokine production) is incorrect because MAC does not directly enhance cytokine production. Cytokine production is mainly regulated by other immune cells and signaling pathways.

Correct answer:

The main function of the Membrane Attack Complex (MAC) is to lyse pathogens by creating pores in their cell membranes. First, MAC assembles on the pathogen's surface. Then, it forms a pore, disrupting the pathogen's membrane integrity, leading to cell lysis. This mechanism is crucial for the immune system to effectively eliminate pathogens. Choice A (Recruitment of neutrophils) is incorrect because MAC is not involved in recruiting neutrophils. Neutrophil recruitment is typically mediated by other signaling molecules. Choice B (Phagocytosis activation) is incorrect as MAC does not directly activate phagocytosis. Phagocytosis is a separate process involving the engulfment of pathogens by immune cells. Choice D (Enhancing cytokine production) is incorrect because MAC does not directly enhance cytokine production. Cytokine production is mainly regulated by other immune cells and signaling pathways.

Correct answer:

The priority intervention in managing acute pancreatitis is to administer intravenous fluids to maintain adequate hydration. Acute pancreatitis can lead to significant fluid loss and dehydration due to factors such as vomiting and third-spacing of fluids into the retroperitoneal space. Adequate hydration helps to optimize perfusion to the pancreas, prevent hypovolemic shock, and support overall organ function. This intervention also aids in flushing out inflammatory mediators and preventing complications such as acute kidney injury. Monitoring fluid status and adjusting the rate of intravenous fluid administration based on the patient's response is crucial in the management of acute pancreatitis. While other interventions such as imaging studies, nutritional support, and gastric acid suppression may be important in managing acute pancreatitis, ensuring adequate hydration is the most critical initial step.

Correct answer:

The correct answer is B: Ask the patient about abdominal discomfort. This is important because the patient with a hip spica cast may experience pressure on the abdomen, leading to potential abdominal discomfort or complications. It is crucial to monitor for signs of abdominal issues promptly. A: Avoid placing the patient in prone position - While this is generally a good practice to prevent pressure ulcers, it is not directly related to the specific concern of abdominal discomfort in this scenario. C: Discuss remaining on bed rest for several weeks - While bed rest may be necessary for a period, it is not directly addressing the potential issue of abdominal discomfort from the spica cast. D: Use the cast support bar to reposition the patient - While repositioning the patient is important, the primary concern in this situation is monitoring for abdominal discomfort, not repositioning the patient.

Correct answer:

The correct answer is C: Increase fluid intake while taking the drug. Interferon alfa 2b can cause flu-like symptoms such as fever, chills, and muscle aches, leading to dehydration. Increasing fluid intake helps to prevent dehydration and supports the body's ability to manage these side effects. A: Avoid drinking alcohol while taking the drug - Although it is generally recommended to limit alcohol consumption while taking medications, this is not specifically related to interferon alfa 2b. B: Continue to maintain maximal physical activity - Excessive physical activity may exacerbate the flu-like symptoms caused by interferon alfa 2b, so it is advisable to avoid overexertion. D: Treat constipation with over-the-counter laxatives - Constipation is not a common side effect of interferon alfa 2b, so using over-the-counter laxatives may not be necessary unless specifically advised by a healthcare provider.