This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Rural & Urban Health Centres, Workers, Norms, Subject name: Social & Preventive Medicine
Test done at sub Subcentre during pregnancy: 
Select and explain. 
A. USG, B. Haemoglobin, C. OGTT, D. Triple test
B: Haemoglobin
Answer: B: Haemoglobin 
Explanation: Tests done at Sub center: Pregnancy detection test Hemoglobin level estimation Urine test for albumin and sugar Rapid malaria test Tests done at PHC/CHC/DH: Blood grouping with Rh HIV testing VDRL, RPR Rapid Malaria test Blood Sugar HBSAg.