Physiological Integrity: Reduction of Risk Potential
Reduction of Risk Potential
This domain tests anticipation of complications, monitoring, lab and diagnostic interpretation, and preoperative/postoperative care. The exam wants early recognition and action before a complication becomes irreversible.
Core rules
- Monitor trends, not single values. A potassium of 5.1 mmol/L is more concerning when it is rising than when it is stable.
- Postoperative priorities: airway, breathing, circulation, pain, wound, and early ambulation. Prevent atelectasis with incentive spirometry and coughing.
- DVT signs include unilateral calf pain, swelling, warmth, and erythema; pulmonary embolism adds sudden dyspnea, chest pain, and tachycardia. Do not massage the leg.
- Report suspected hemorrhage, infection, dehiscence, or shock promptly.
- Preoperative: verify consent, allergies, NPO status, and baseline labs; postoperative: monitor sedation, vital signs, and urine output.
- Fall risk increases with sedatives, orthostatic hypotension, and environmental hazards.
Worked example
On postoperative day 2, a client has a swollen, tender left calf and sudden shortness of breath. The nurse suspects DVT with possible PE, keeps the client on bed rest, avoids massaging the leg, notifies the provider, and anticipates Doppler ultrasound and oxygen. The reasoning is that a clot can embolize; massage and ambulation without evaluation increase that risk.
Traps that cost marks
Massaging a painful calf; dismissing a 'normal but changing' vital sign; ignoring low urine output; failing to hold anticoagulants before surgery when ordered; delaying reporting of a wound that has separated.