This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Social & Preventive Medicine
[{'content': '‘Dipstick Test’ for rapid diagnosis of Plasmodium falciparum is based on \nSelect and explain. \nA. Arginine-rich protein, B. Serine-rich protein, C. Tyrosine-rich protein, D. Histidine-rich protein', 'role': 'user'}, {'content': 'Answer: D \nExplanation: ‘Dipstick Test’ is used for the rapid diagnosis of Plasmodium falciparum (Pf)\n– Is a ‘rapid whole blood immuno-chromatographic test’\n– Uses 2 antibodies specific for ‘Pf Histidine Rich Protein II Antigen’\n– Is a ‘antigen capture assay’ – Colloidal gold is used in the test card\n– Gives results in 3 – 5 minutes\n– Specificity and negative predictive value is 99%\n– Not as effective when parasite levels < 100 parasites/ml of blood\n• Rapid tests for diagnosis of Pf:\n– Dipstick test (Pf Histidine rich protein II – HRP II)\n– Leishman stain\n– Field’s stain\n– Acridine orange.', 'role': 'assistant'}]