Final answer:
The implementation phase of the nursing process typically begins after a detailed care plan has been developed, although immediate action may be taken in critical situations.
Step-by-step explanation:
The implementation phase as the fourth step of the nursing process typically begins after the care plan has been developed. To clarify, the nursing process generally includes the following steps:
- Assessment
- Diagnosis
- Planning
- Implementation
- Evaluation
Detailed planning and goal setting must precede the implementation stage. However, it is important to note that in some critical situations, such as emergencies, nurses may need to act immediately without going through all prior steps to stabilize the patient's condition.