[2025-10-01T15:53:23.181586] [QUERYOME] Starting research for query 139: 'Instructions:
 Answer the question below. First, respond with the single best option letter (A, B, C, or D). Then provide a concise reasoning (1–3 sentences). Use both the retrieved evidence and your own medical knowledge to choose the most accurate answer.

Question:
The "Pulse oximetry" used in the determination of:

Options:
A. Rate of flow
B. Oxygen saturation
C. Blood volume
D. Blood coefficient'
[2025-10-01T15:53:23.232826] [PI] Starting research for query: 'Instructions:
 Answer the question below. First, respond with the single best option letter (A, B, C, or D). Then provide a concise reasoning (1–3 sentences). Use both the retrieved evidence and your own medical knowledge to choose the most accurate answer.

Question:
The "Pulse oximetry" used in the determination of:

Options:
A. Rate of flow
B. Oxygen saturation
C. Blood volume
D. Blood coefficient'
[2025-10-01T15:53:23.234100] Saving text to bench_final/run1/medmcqa/medmcqa_1699/pi_initial_prompt.txt
[2025-10-01T15:53:23.239117] [PI] Calling o3 for initial analysis...
[2025-10-01T15:53:30.538028] [PI] Reasoning iteration 1
[2025-10-01T15:53:30.539652] [PI reasoning] **Researching pulse oximetry uses**

The user wants to know about the determination of arterial oxygen saturation using pulse oximetry. I'm thinking it determines this non-invasively, which is super handy! I should look for some citations to back this up with typical papers. A quick search should help me find relevant studies or original research that discusses its applications, to ensure I provide the user with accurate and informative references. Let's get started!
[2025-10-01T15:53:30.542777] [PI] Executing function call 1: hybrid_search
[2025-10-01T15:53:30.544561] [PI] Function arguments: {'query': 'pulse oximetry determines oxygen saturation of hemoglobin', 'k': 5, 'faiss_weight': 0.6, 'bm25_weight': 0.4, 'use_rrf': True}
[2025-10-01T15:53:30.547590] Saving JSON to bench_final/run1/medmcqa/medmcqa_1699/pi_iteration_1_tool_call_2_hybrid_search.json
[2025-10-01T15:53:31.398271] [PI] Function hybrid_search executed successfully
[2025-10-01T15:53:31.408234] Saving JSON to bench_final/run1/medmcqa/medmcqa_1699/pi_iteration_1_tool_result_2_hybrid_search.json
[2025-10-01T15:53:31.418587] [PI] Continuing reasoning with 1 function responses...
[2025-10-01T15:53:35.062836] [PI] Reasoning iteration 2
[2025-10-01T15:53:35.064655] [PI] No function calls found in response
[2025-10-01T15:53:35.067389] [PI] No more function calls - research complete
[2025-10-01T15:53:35.069104] Saving text to bench_final/run1/medmcqa/medmcqa_1699/pi_final_answer.txt
[2025-10-01T15:53:35.074193] [QUERYOME] Query completed successfully
