Nokea
What causes tinea capitis (ringworm)?
- A. Virus
- B. Fungus
- C. Allergic reaction
- D. Bacterial infection
Correct Answer: B
Rationale: Tinea capitis, also known as ringworm of the scalp, is a fungal infection caused by various dermatophyte fungi, primarily Trichophyton and Microsporum species. These fungi thrive on dead tissues, including hair, skin, and nails, and can lead to symptoms like red, scaly patches on the scalp, hair loss, and itching. The infection is contagious and can spread through direct contact with an infected person, animals, or contaminated objects. Proper diagnosis and treatment with antifungal medications are essential to manage tinea capitis effectively.
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A client is being treated for acute pyelonephritis and will undergo laboratory tests. These tests are expected to help determine the clients BUN, creatinine, and serum electrolyte levels. Why should the nurse evaluate these test results?
- A. To determine the severity of the disorder
- B. To identify signs of fluid retention
- C. To determine the location of discomfort
- D. To determine clients response to therapy
Correct Answer: A
Rationale: Evaluating the client's BUN, creatinine, and serum electrolyte levels when being treated for acute pyelonephritis is crucial in determining the severity of the disorder. BUN and creatinine levels are indicators of renal function, where elevated levels may suggest impaired kidney function due to inflammation in the kidneys from pyelonephritis. Abnormal electrolyte levels, such as potassium and sodium, may also reflect the impact of the infection on renal function. Therefore, monitoring these test results helps healthcare providers assess how well the kidneys are functioning and the severity of the pyelonephritis to guide appropriate treatment decisions.
A patient with a history of endocarditis is undergoing a bowel resection. The nurse explains that the prophylactic antibiotics prevent which of the following?
- A. Endocarditis c.Vegetative emboli
- B. Peritonitis
- C. Inflammation
Correct Answer: A
Rationale: Prophylactic antibiotics are given to prevent the recurrence or complications of endocarditis in patients with a history of the condition. Endocarditis is an infection of the inner lining of the heart chambers and valves. One of the serious complications of endocarditis is the formation of vegetative emboli, which are clusters of bacteria and fibrin that can break off and travel through the bloodstream, potentially causing blockages in various organs. By preventing endocarditis, the antibiotics also help reduce the risk of vegetative emboli formation during surgical procedures or other situations where bacteria may enter the bloodstream. Therefore, the nurse's explanation to the patient about the prophylactic antibiotics is focused on preventing complications related to endocarditis, including the formation of vegetative emboli.
When testing visual fields, the nurse is assessing which of the following parts of vision?
- A. Peripheral vision
- B. Distance vision
- C. Near vision
- D. Central vision
Correct Answer: A
Rationale: When testing visual fields, the nurse is assessing the peripheral vision. Peripheral vision refers to the outer area of the visual field, away from the center of gaze. It allows individuals to detect objects, movement, and stimuli in their surroundings without needing to focus directly on them. Testing peripheral vision is important for detecting potential visual field deficits that can impede daily activities and safety, such as driving or navigating crowded spaces. By assessing the peripheral vision, healthcare professionals can identify any limitations or abnormalities that may require further evaluation or intervention.
Obstruction of the airway in the patient with asthma is caused by all of the following except:
- A. thick mucus.
- B. swelling of bronchial membranes.
- C. destruction of the alveolar wall.
- D. contraction of muscles surrounding the bronchi
Correct Answer: C
Rationale: Obstruction of the airway in a patient with asthma is primarily caused by inflammation and narrowing of the airways due to a combination of factors such as thick mucus, swelling of bronchial membranes, and contraction of muscles surrounding the bronchi. Destruction of the alveolar wall is not a direct cause of airway obstruction in asthma patients; alveolar wall destruction is typically associated with conditions like emphysema. In asthma, the primary mechanisms contributing to airway obstruction are related to inflammation, mucus production, and bronchoconstriction.
To supplement a diet with foods high in potassium, the nurse should recommend the addition of:
- A. Fruits such as bananas
- B. Milk and yogurt
- C. Green leafy vegetables
- D. Nuts and legumes
Correct Answer: A
Rationale: Fruits such as bananas are a good source of potassium. Potassium is an essential mineral that plays a vital role in various bodily functions, including maintaining proper muscle function, nerve transmission, and fluid balance. Bananas are easy to incorporate into the diet and provide a significant amount of potassium per serving. Other fruits high in potassium include oranges, melons, and avocados. Therefore, recommending the addition of fruits such as bananas is a suitable way to supplement a diet with foods high in potassium.