{'fraction_non_alphanumeric': 0.030326004548900682, 'fraction_numerical': 0.024260803639120546, 'mean_word_length': 5.111111111111111, 'pattern_counts': {'":': 0, '<': 0, '<?xml version=': 0, '>': 0, 'https://': 0, 'lorem ipsum': 0, 'www.': 0, 'xml': 0}, 'pii_count': 0, 'substrings_counts': 0, 'word_list_counts': {'cursed_substrings.json': 0, 'profanity_word_list.json': 0, 'sexual_word_list.json': 0, 'zh_pornsignals.json': 0}}
Angiographic Demonstration of Pulmonary Venomotor Reactions in the Intact Dog

Twenty adult mongrel dogs (15 to 18.2 kilograms), lightly anesthetized with urethane (1.5 grams per kilogram), were taped supine to a fluoroscopic table. Catheters were placed in the left atrium, a small pulmonary vein of the left lower lobe (1), pulmonary artery, femoral artery and a peripheral vein. Statham strain gauges (P23Db) and a multichannel oscilloscopic recorder were used to measure pressures. The position of the catheter in the pulmonary vein was such that blood flow was not obstructed. Six milliliters of 80% meglumine iothalamate (Angioconray) were injected retrograde in approximately 2 to 3 seconds using a 10 milliliter hand syringe. Cineangiograms were recorded with a 16-millimeter cinecamera attached to a Westinghouse Orthicon-Televex image amplification system. In some animals, x-ray films were made using a spot-film device triggered manually to coincide with the end of injection on the contrast. Hypoxia: After obtaining control pressures, venous angiograms and analysis of blood pH, pC02 and 02 saturation, 13 dogs were made to breathe 8% oxygen through an endotracheal tube. At 4, 8 and 12 minutes of the hypoxic period, repeat venous angiograms were recorded and blood pH, pC02 and O2 saturation determined.