Potential complications of devices and procedures
Introduction
Medical devices and invasive procedures improve outcomes, but they also introduce predictable risks. On the Next Generation NCLEX (NGN), learners are expected to recognize early warning signs, prioritize nursing actions, and prevent harm through vigilant monitoring and timely escalation.
This section integrates prior content on post-procedure monitoring, vital signs, electrolytes, and equipment safety, focusing on what can go wrong and how nurses respond first.
Learning objectives
By the end of this section, the learner should be able to:
- Identify common complications associated with medical devices and procedures
- Recognize early vs late clinical indicators
- Prioritize immediate nursing actions
- Apply NGN-style clinical judgment to device-related scenarios
Core concept: Devices bypass natural defenses
Any device that enters the body increases the risk of infection, bleeding, obstruction, or malfunction.
The nurse’s role is anticipation, not reaction.
Early vs late complications
Complications often follow predictable timelines. NGN questions frequently test whether the nurse recognizes when something is abnormal.
Early complications (minutes to hours)
- Air embolism
- Hemorrhage
- Pneumothorax
- Acute allergic reaction
- Sedation-related respiratory depression
Late complications (days to weeks)
- Device-associated infection
- Thrombosis
- Pressure injury
- Device occlusion
- Fistula formation
- //////Caption: Timeline of Device-Related Complications
- Illustration type: Timeline
- Illustration note: Illustrate common early (minutes to hours) and late (days to weeks) complications of medical devices and invasive procedures, highlighting examples in each category///////
Infection-related complications
Common devices involved
- Central venous catheters
- Urinary catheters
- Surgical drains
- Endotracheal tubes
Early warning signs
- Local redness, warmth, or drainage
- Fever or hypothermia
- Rising white blood cell count
- Altered mental status in older adults
High-Risk Device-Associated Infections
Certain devices are strongly linked to specific infections that are frequently tested.
Central venous catheters → CLABSI risk
- Monitor insertion site
- Assess for unexplained fever
- Maintain sterile dressing integrity
- //////Caption: Central Line Dressing: Normal vs. Infected Insertion Site
- Illustration type: Side-by-side comparison photo/diagram
- Illustration note: Compare a normal central line insertion site with a clean, dry, intact occlusive dressing versus an infected insertion site showing erythema, swelling, and purulent drainage to reinforce early recognition of CLABSI////////
Urinary catheters → CAUTI risk
- Maintain closed system
- Keep bag below bladder
- Avoid dependent loops
Endotracheal tubes → Ventilator-associated pneumonia (VAP)
- Elevate HOB 30–45°
- Perform oral care
- Monitor secretions
Surgical drains → Localized wound infection
- Sudden change in drainage color
- Foul odor
- Increased pain at site
Complications during device removal
Insertion risks are commonly discussed. Removal risks are often overlooked.
Central line removal
- Risk: Air embolism
- Nursing action: Apply an occlusive dressing immediately after removal and position the client supine during removal to reduce the risk of air embolism (left lateral Trendelenburg is used if an air embolism occurs)
Chest tube removal
- Risk: Tension pneumothorax
- Nursing action: Apply occlusive dressing immediately
Foley catheter removal
- Risk: Urinary retention
- Nursing action: Monitor first void within 6–8 hours
Epidural catheter removal
- Risk: Epidural hematoma (neurological deficit)
- Nursing action: Assess sensation and motor function
Bleeding and vascular complications
High-risk procedures
- Central line insertion
- Arterial line placement
- Surgical drain removal
- Cardiac catheterization
Key assessment findings
- Oozing or frank bleeding
- Expanding hematoma
- Hypotension
- Tachycardia
- //////Caption: Expanding Hematoma at an Arterial Line Site
- Illustration type: Annotated clinical photo/diagram
- Illustration note: Illustrate an expanding hematoma at an arterial line insertion site with labels identifying increasing size, firmness, and the need to assess distal pulses and circulation.///////
Air embolism
Risk factors
- Central line disconnection
- Improper priming of IV tubing
- Line removal without occlusion
Clinical signs
- Sudden dyspnea
- Chest pain
- Hypotension
- Anxiety or confusion
- //////Caption: Recognizing and Responding to an Air Embolism
- Illustration type: Clinical flowchart
- Illustration note: Illustrate the progression from central line manipulation to sudden dyspnea, chest pain, hypotension, and oxygen desaturation, followed by immediate positioning in the left lateral Trendelenburg position, oxygen administration as indicated, and provider notification.///////
Obstruction and dislodgement
Affected devices
- Feeding tubes
- Chest tubes
- Urinary catheters
- Surgical drains
Warning signs
- Sudden change in output
- Increased pressure or pain
- Alarms sounding
- Absent expected drainage
- //////Caption: Normal vs. Obstructed Chest Tube Drainage System
- Illustration type: Side-by-side comparison diagram
- Illustration note: Compare a normal chest tube drainage system with expected tidaling and drainage versus an obstructed system showing absent tidaling and little or no expected drainage to reinforce early recognition of chest tube obstruction.///////
Tissue injury and pressure-related complications
Contributing factors
- Prolonged device contact
- Edema
- Poor circulation
- Reduced sensation
Assessment findings
- Skin redness or breakdown
- Pain or numbness
- Swelling
- //////Caption: Common Device-Related Pressure Injury Sites
- Illustration type: Annotated anatomical diagram
- Illustration note: Illustrate common locations of device-related pressure injuries, including the nasal bridge (nasal cannula/NG tube), ears (oxygen tubing), and sacrum (prolonged immobility with medical devices), highlighting areas at highest risk for skin breakdown.///////
Procedure-specific complications
Anterior axillary line (blue) Mid-axillary line (red)
Examples
- Lumbar puncture: headache, CSF leak
- Thoracentesis: pneumothorax
- Endoscopy: bleeding, perforation
- Biopsy: infection, hemorrhage
- //////Caption: High-Risk Procedure Complications
- Illustration type: Comparison table
- Illustration note: Compare lumbar puncture, thoracentesis, endoscopy, and biopsy by identifying their most serious complications and the priority nursing assessments following each procedure.///////
OR
////OPTIONAL “Anterior axillary line (blue) Mid-axillary line (red)”
📷 Image suggestion: “Thoracentesis landmark anatomy” — diagram showing anterior axillary and mid-axillary lines for procedure site landmarking, if this fragment is meant to anchor an actual image here./////
Putting it together: NGN prioritization
NGN integration
- Sudden change = assess immediately
- Device complication + abnormal vital signs = escalate immediately
- Airway and circulation override device concerns
Clinical vignette 1
A client with a central line becomes acutely short of breath during a tubing change. Blood pressure drops and oxygen saturation decreases.
Nursing action: Place the client in the left lateral Trendelenburg position, administer oxygen as indicated, notify the provider immediately, and prepare for further intervention.
Rationale: Sudden dyspnea, hypotension, and oxygen desaturation during central line manipulation suggest an air embolism, a medical emergency requiring immediate intervention.
Clinical vignette 2
A client with a surgical drain reports increasing pressure at the incision site. Drain output has stopped abruptly.
Nursing action: Assess the surgical site and drain, notify the provider promptly, and continue close monitoring.
Rationale: Abrupt cessation of drainage with increasing pressure at the incision site may indicate drain obstruction or hematoma formation requiring prompt evaluation.