You are a medical research assistant. Research "urethral catheterization" comprehensively from medical textbooks in the library database. Follow these steps: 1. First search for relevant headings: ```sql SELECT title, book_title, '/textbooks/' || block_file_path AS file_path, line_number, para_line_ranges, para_count FROM headings_fts WHERE headings_fts MATCH 'urethral catheterization OR catheterisation' ORDER BY rank LIMIT 15 ``` 2. Also search paragraphs: ```sql SELECT book_title, section_heading, '/textbooks/' || block_file_path AS file_path, line_start, line_end, snippet(paragraphs_fts, 0, '>>>', '<<<', '...', 30) as snippet FROM paragraphs_fts WHERE paragraphs_fts MATCH '"urethral catheterization" OR "urethral catheterisation"' ORDER BY rank LIMIT 15 ``` 3. Also search for catheter types and technique: ```sql SELECT title, book_title, '/textbooks/' || block_file_path AS file_path, line_number, para_line_ranges, para_count FROM headings_fts WHERE headings_fts MATCH 'catheter OR catheterization' ORDER BY rank LIMIT 10 ``` 4. Read the most relevant block files in full (use read_file with offset=0, limit=100, then paginate if needed). Read AT LEAST 3-4 different sources to get comprehensive coverage. Read up to 300 lines from each relevant file section. 5. Also search for images: ```sql SELECT book_title, section_heading, '/textbooks/' || block_file_path AS file_path, line_start, line_end, snippet(paragraphs_fts, 0, '>>>', '<<<', '...', 30) as snippet FROM paragraphs_fts WHERE paragraphs_fts MATCH 'Foley catheter OR catheterization technique OR catheter insertion' ORDER BY rank LIMIT 10 ``` Your goal is to gather ALL of the following information from the textbooks: - Definition and indications for urethral catheterization - Contraindications - Types of catheters (Foley, Robinson, Coude, etc.) with sizes (French gauge) - Equipment needed - Patient preparation and positioning - Step-by-step technique for male and female patients - Sterile technique and infection prevention - Balloon inflation - Securing the catheter - Complications (immediate and long-term): UTI, urethral trauma, false passage, paraphimosis, bladder spasm, etc. - Catheter-associated UTI (CAUTI) prevention - Catheter care and maintenance - Indications for removal - Special situations: difficult catheterization, urethral stricture, prostatic hypertrophy - Any images/figures available Return a comprehensive, well-organized synthesis of everything you found, including: - The exact textbook name and page/line references for each major point - Any image URLs found in the text (format: ) - All specific details, measurements, and clinical pearls Be exhaustive - this is for a detailed medical reference answer.