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 C
Explanation
A. Loss of pain, temperature, and light touch sensation on the same side as the injury. In Brown-Sequard syndrome, pain, temperature, and light touch are typically lost on the opposite (contralateral) side of the injury.
B. Loss of motor function and deep pressure sensation on the opposite side of the injury. Motor function and deep pressure sensation loss occur on the same side (ipsilateral) as the injury.
C. Loss of motor function and position sense on the same side as the injury. Brown-Sequard syndrome is a spinal cord hemisection injury leading to loss of motor function and proprioception on the same side as the injury.
D. Loss of motor function with preserved pain and temperature sensation in the lower extremities. Pain and temperature sensations are lost on the opposite side of the injury in Brown-Sequard syndrome, not preserved.
Correct Answer is C
Explanation
A. "I should monitor my temperature regularly and report any fevers to my healthcare provider." This statement shows correct understanding. Fever may indicate worsening infection or complications, so it’s important to monitor and report any fevers.
B. "I need to inform my healthcare provider about any new symptoms, such as shortness of breath or chest pain." This statement shows understanding. New symptoms, especially respiratory or cardiac, could signify complications, and should be reported.
C. "I can stop taking my antibiotics once I feel better." This indicates a need for further teaching. Completing the full course of antibiotics is crucial to ensure the infection is completely eradicated, even if symptoms improve.
D. "I will need to take antibiotics before dental procedures." Patients with infective endocarditis often require prophylactic antibiotics before dental procedures to prevent bacterial entry into the bloodstream.