Diagnosis of primary herpes simplex virus infections relies on identifying which gene______________?
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Answer: D. Flourescent stain for cytology
Explanation
Direct fluorescent antibody stains assist in identifying viral antigens for herpes infections. Cytologic testing utilizing fluorescent labels provides rapid and accurate viral identification. This laboratory technique detects herpes simplex virus proteins within cellular samples. Primary herpes simplex virus infections cause widespread gingivostomatitis in children. Laboratory diagnostic methods include viral culture, cytology, and antigen detection. Early antiviral therapy reduces symptom duration and viral shedding significantly.
Clinicians use rapid diagnostic tests when clinical presentation is ambiguous. Differentiating viral lesions from aphthous ulcers ensures appropriate pharmacological treatment. Patient education prevents transmission during active viral shedding phases. Giemsa stain is used for general cytology but lacks specific viral antigen labeling. Wright stain provides standard hematologic cell morphology rather than viral identification. Routine cytology alone without fluorescent stains cannot reliably confirm viral etiology.
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Q1. Prophylaxis for endocarditis is advised during all specified dental interventions except_____________?
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Answer: B. Initial placement of orthodontic brackets
Initial placement of orthodontic brackets does not breach gingival tissues. Procedures causing transient bacteremia require antibiotic prophylaxis in high risk patients. Orthodontic bracket bonding generates minimal blee...
Q2. Fine needle aspiration biopsy serves as a diagnostic tool for:_____________?
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Answer: B. Pemphigus
Fine needle aspiration cytology is useful for evaluating lesions and fluids, but direct immunofluorescence on biopsy tissue is typically diagnostic for pemphigus.
Q3. Erythema multiforme is classified as:___________?
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Answer: A. An acute self limiting disease, of skin and oral mucous membrane
Erythema multiforme is an acute immune-mediated inflammatory skin and mucosal condition. The disease runs a self-limiting course resolving typically within several weeks. Target lesions appear on the skin alongside painf...
Q4. A fibromatous lesion combined with glandular components is known as_______________?
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Answer: B. Fibroadenoma
A benign tumor combining fibrous tissue components with glandular elements is classified as a fibroadenoma. Histologically, it exhibits a proliferation of both stromal connective tissue and epithelial glandular ducts. Th...
Q5. A 24-year-old male presents with quadrant tooth mobility, irregular bone loss on radiographs, and histopathology demonstrating histiocytes and eosinophils. What is the leading diagnosis______________?
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Answer: A. Hand- Schuller-Christian disease
Hand-Schuller-Christian disease presents with multilocular bone loss and tooth mobility. Histopathology demonstrates characteristic Langerhans cell histiocytes mixed with eosinophils. Young patients are typically affecte...
Q6. In which diagnostic test for pemphigus vulgaris is the 'fishnet' pattern visualized?
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Answer: A. Direct immunofluorescence
Direct immunofluorescence detects autoantibodies bound to intercellular cement substance. In pemphigus vulgaris, IgG deposition outlines epithelial cells in a meshwork. Microscopic visualization reveals this distinct flu...