A nurse is assisting with the care of a school-age child who has respiratory failure due to pneumonia. Which of the following positions should the nurse encourage to allow maximal lung expansion?

Choice A reason: Collecting urine from the catheter's port is not a correct action for the nurse to take, as it can introduce contamination and infection into the urinary tract. The nurse should insert a new, sterile catheter into the bladder and collect the urine directly from the catheter.

Choice B reason: Using a sterile specimen container is a correct action for the nurse to take, as it ensures that the urine sample is not contaminated by any bacteria or other substances. The nurse should label the container with the client's name, date, and time of collection and send it to the laboratory as soon as possible.

Choice C reason: Using sterile water to inflate the balloon is not a relevant action for the nurse to take, as it applies to an indwelling catheter, not a straight catheter. A straight catheter does not have a balloon and is removed after the urine is drained.

Choice D reason: Instructing the client to clean from front to back with an antiseptic solution is a good action for the nurse to take, as it helps to prevent the introduction of bacteria from the anal area into the urethra. However, it is not the best answer, as it is a general hygiene measure, not a specific action for obtaining a urine specimen.

Choice A reason: Tachycardia is a sign of circulatory overload. Circulatory overload is a condition where the blood volume or rate of infusion is too high for the client's cardiovascular system. This causes the heart to beat faster and harder to pump the excess fluid, resulting in a high heart rate, or tachycardia.

Choice B reason: Weight loss is not a sign of circulatory overload. Weight loss is a condition where the body loses more calories than it consumes, resulting in a decrease in body mass. Weight loss can be caused by various factors, such as diet, exercise, illness, or medication. Weight gain, not weight loss, is a sign of circulatory overload, as the excess fluid accumulates in the body.

Choice C reason: Hypotension is not a sign of circulatory overload. Hypotension is a condition where the blood pressure is too low, which can impair the blood flow to the vital organs. Hypotension can be caused by various factors, such as dehydration, bleeding, shock, or medication. Hypertension, not hypotension, is a sign of circulatory overload, as the excess fluid increases the pressure in the blood vessels.

Choice D reason: Diaphoresis is not a sign of circulatory overload. Diaphoresis is a condition where the body sweats excessively, which can help to regulate the body temperature and eliminate toxins. Diaphoresis can be caused by various factors, such as fever, anxiety, exercise, or medication. Edema, not diaphoresis, is a sign of circulatory overload, as the excess fluid leaks into the interstitial spaces and causes swelling.