A nurse is caring for a school-age child who is 2 hr postoperative following a cardiac catheterization.

The nurse observes blood on the child’s dressing.

Obtain the specimen from the retention port. This is because the retention port is a sterile site that can be accessed by a syringe to aspirate urine without contaminating the specimen or the closed drainage system. The retention port should be cleaned with an alcohol swab before inserting the syringe. The specimen should be transferred to a sterile container and labeled appropriately.

Choice A is wrong because unclamping the collection port below the bag would allow urine to flow out of the bag, which is not sterile and may contain bacteria or sediment. Choice C is wrong because disconnecting the catheter from the collection tubing would break the closed drainage system and increase the risk of infection. Choice D is wrong because using the balloon port to obtain the sterile specimen would deflate the balloon that holds the catheter in place and cause trauma to the bladder wall.

Normal ranges for urine characteristics vary depending on the type of analysis, but some general parameters are:

• Color: pale yellow to amber
• Clarity: clear or slightly cloudy
• Odor: faint aromatic
• pH: 4.5 to 8.0
• Specific gravity: 1.005 to 1.030
• Protein: <150 mg/24 hr
• Glucose: negative
• Ketones: negative
• Blood: negative
• Nitrites: negative
• Leukocyte esterase: negative
• Bacteria: <10,000 CFU/mL

The correct answer is choice C. A client who was just given a glass of orange juice for a low blood glucose level.

This client should be assessed first because they are at risk of hypoglycemia, which is a medical emergency that can cause seizures, coma, or death if not treated promptly.

The nurse should check the client’s blood glucose level again and provide additional carbohydrates or glucose if needed.

Choice A is wrong because a client who is scheduled for a procedure in 1 hr is not in immediate danger and can be assessed later.

The nurse should verify the client’s consent, allergies, and vital signs before the procedure, but this is not a priority over a client with low blood glucose.

Choice B is wrong because a client who received a pain medication 30 min ago for postoperative pain is likely to have improved pain relief and does not need immediate assessment.

The nurse should monitor the client’s pain level, vital signs, and respiratory status periodically, but this is not a priority over a client with low blood glucose.

Choice D is wrong because a client who has 100 mL of fluid remaining in his IV bag is not in immediate danger and can be assessed later.

The nurse should change the IV bag when it is empty or nearly empty, but this is not a priority over a client with low blood glucose.

Normal blood glucose levels are between 70 to 100 mg/dL (3.9 to 5.5 mmol/L) when fasting, and less than 140 mg/dL (7.8 mmol/L) two hours after eating. A blood glucose level below 70 mg/dL (3.9 mmol/L) is considered hypoglycemia and requires immediate treatment. Orange juice is a source of simple carbohydrates that can raise blood glucose quickly, but it may not be enough to prevent hypoglycemia in some cases.