All Subjects Medicine Surgery Pathology Anatomy Pharmacology Social & Preventive Medicine Microbiology Gynaecology & Obstetrics Dental Physiology Biochemistry Pediatrics
Showing 15321 questions
Sort:
667 Pathology

Caries, all are true except:

ALactobacillus is main causative organism in plaque
Bbsmooth surface caries occur due to streptococcus mutans
CPit and Fissure caries can be prevented by using pit and tissue sealants
DFluorides help in reducing caries incidence
Pathology
View Explanation →
672 Pathology

A study of persons developing skin lesions following sun exposure is conducted. The lesions are not found on skin protected from ultraviolet light. Biopsies of involved skin show immunoglobulin G deposition along the dermal-epidermal junction, along with vacuolization of the basal layer and a perivascular lymphocytic infiltrate. No other organ involvement is present. Which of the following diseases do these patients most likely have?

ABullous pemphigoid
BCeliac disease
CDiscoid lupus erythematosus
DDysplastic nevus syndrome
Pathology
View Explanation →
675 Pathology

A 25-year-old woman complains of low-grade fever, fatigue, and persistent rash over her nose and upper chest. She also notes pain in her knees and elbows. A skin biopsy shows dermal inflammation and granular deposits of IgG and C3 complement along the basement membrane at the epidermal/dermal junction. Urinalysis reveals microscopic hematuria and proteinuria. The ANA is positive. The development of thromboembolic complications (e.g., deep venous thrombosis) in this patient is commonly associated with elevated serum levels of antibodies to which of the following antigens?

AABO blood group antigens
BClass II HLA molecules
CClotting factors
DPhospholipids
Pathology
View Explanation →