Final answer:
Freshly voided normal urine is typically acidic with a pH range from 4.5 to 8.0, and the normal range for well patients is from 6.0 to 7.0, which aligns with choice b.
Step-by-step explanation:
Freshly voided normal urine from well patients is usually acidic. This is because the body regulates the acid-base balance, and as part of this process, hydrogen ions are pumped into the urine, which is then buffered by substances such as bicarbonate (HCO3), dihydrogen phosphate ion (H2PO4-), or ammonia (forming NH4+, ammonium ion). Urine pH can be influenced by diet; for instance, consuming meats can lower the pH, while citrus fruits, vegetables, and dairy products can raise it. However, freshly voided normal urine typically has a pH range from about 4.5 to 8.0, being more acidic than water (which has a pH of 7.0, neutral) but less acidic than stomach acid. Given this information, the correct answer is that freshly voided normal urine from well patients is acidic with a pH of: b. 6.0 - 7.0.