Final answer:
The nurse should assess the client who is postoperative following a thoracotomy and has a chest tube with 150 mL of bright-red blood in the collection chamber from the past 1 hr. This indicates active bleeding, which is a critical condition that requires immediate assessment.
Step-by-step explanation:
The nurse should assess the client who is postoperative following a thoracotomy and has a chest tube with 150 mL of bright-red blood in the collection chamber from the past 1 hr. This client's situation indicates active bleeding, which is a critical condition that requires immediate assessment. Bright-red blood in the chest tube suggests arterial bleeding, which can rapidly lead to hypovolemic shock if not addressed promptly.