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 B
Explanation
A. The gallbladder became infected by a virus and needs to be removed. Gallstones are not caused by viral infections; they typically develop from an imbalance in the substances that make up bile, such as cholesterol and bilirubin.
B. The gallbladder has become inflamed due to the cholesterol in the gallstones. Cholesterol is a common component of gallstones, and these stones can cause inflammation of the gallbladder (cholecystitis), leading to the need for removal.
C. The gallbladder has become blocked by a tumor and is no longer working. Tumors can obstruct the gallbladder, but this is not the cause of gallstones or the primary reason for a cholecystectomy.
D. The gallbladder has become inflamed due to a build-up of gallstones that are blocking the common bile duct. This describes choledocholithiasis, a condition where gallstones block the common bile duct, but it is not the primary cause of gallbladder inflammation requiring a cholecystectomy.
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.