A 40-year old patient presents with symptoms suggestive of tuberculosis (TB). What is the confirmatory test for TB?
Interferon Gamma Release Assays (IGRAS)
Sputum culture
Tuberculin Skin Test (TST)
Chest X-ray
The Correct Answer is B
A. Interferon Gamma Release Assays (IGRAs): IGRAs are useful for detecting TB infection but do not confirm active TB disease. They measure the immune response to TB bacteria but don’t differentiate between latent and active infection.
B. Sputum culture: Sputum culture is the gold standard for confirming active TB because it identifies Mycobacterium tuberculosis bacteria directly, confirming active infection.
C. Tuberculin Skin Test (TST): The TST can indicate TB infection but cannot distinguish between latent and active TB, making it unsuitable as a confirmatory test for active disease.
D. Chest X-ray: A chest X-ray can show signs suggestive of TB but cannot confirm the presence of TB bacteria, so it is not definitive for diagnosing active TB.
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Correct Answer is A
Explanation
A. Reposition the client at least every two hours. Regular repositioning reduces prolonged pressure on specific areas of the body, which helps prevent the formation of pressure injuries.
B. Encourage the client to limit fluid intake. Adequate hydration is important for skin integrity. Limiting fluid intake could lead to dehydration, increasing the risk for skin breakdown.
C. Use a donut-shaped cushion under the client's hips. Donut-shaped cushions can actually increase pressure around the edges of the cushion and restrict blood flow, which could worsen pressure injury risk.
D. Apply a heating pad to the client's back every four hours. Heat can cause skin damage and may increase the risk of burns. Temperature regulation is important, but heating pads are not recommended for pressure injury prevention.
Correct Answer is A
Explanation
A. Otosclerosis. Otosclerosis is a common cause of conductive hearing loss, typically due to abnormal bone growth around the stapes in the middle ear.
B. Acoustic neuroma. Acoustic neuroma is associated with sensorineural hearing loss, not conductive hearing loss.
C. Meniere's disease. Meniere's disease usually causes sensorineural hearing loss, often accompanied by vertigo and tinnitus.
D. Presbycusis. Presbycusis is age-related sensorineural hearing loss and does not result in conductive hearing loss.