Walking into an ICU room can be intimidating. You may see multiple pumps, invasive monitoring lines, a ventilator, drainage systems, and machines you barely discussed in nursing school, all attached to one patient.
This ICU equipment list breaks down the equipment new ICU nurses are most likely to encounter, what each device does, and what the bedside nurse needs to understand about it. The exact equipment and nursing responsibilities vary by facility, so always follow your unit’s policies and training.
Critical Care Unit Equipment
This extensive guide compiles essential equipment, grouped by function for easy searching. Let’s jump in!
Airway/Breathing Equipment
Ventilators
Mechanical ventilators support patients who cannot breathe adequately on their own. Depending on the mode and prescribed settings, the ventilator controls or assists variables such as respiratory rate, pressure, volume, oxygen concentration, and positive end-expiratory pressure. ICU nurses do not independently prescribe ventilator settings, but they need to understand what the settings mean, monitor the patient’s response, recognize important alarms, and collaborate closely with respiratory therapy and the medical team.
- Ventilators are commonly connected to an endotracheal or tracheostomy tube.
- Patients receiving invasive mechanical ventilation are described as “intubated” or “mechanically ventilated.”
- Arterial blood gases may be used to evaluate ventilation, oxygenation, and acid-base status.
- Ventilator alarms should never be silenced without determining why they are occurring.
- Nurses should assess the patient first, then evaluate the airway, tubing, ventilator connections, and relevant settings.
- Specific nursing responsibilities vary by facility, so follow your unit’s ventilator policies and training.
Tip ➡️ If you’re new to the ICU, build rapport with your respiratory therapists if your unit has them. They are a wealth of ventilator knowledge and specialize in the respiratory system. Ask them questions, demonstrate respect for their expertise, and notice what they do.
Positioning Equipment
Proning Devices
Proning means placing a patient in the prone, or face-down, position. It is most commonly used in the ICU for selected patients with severe acute respiratory distress syndrome to improve oxygenation and recruit areas of the lungs that may not ventilate as effectively while the patient is supine.
Proning may be performed manually by a trained team or with the assistance of specialized positioning equipment. The exact method depends on the patient, available equipment, staffing, and facility protocol.
Before and during proning, the team must protect the airway and secure all lines, tubes, drains, and monitoring equipment. Nursing responsibilities may include:
- Confirming that the endotracheal tube and other critical devices are secure.
- Protecting the eyes, face, pressure points, and skin.
- Monitoring oxygenation, ventilation, blood pressure, heart rhythm, and the patient’s overall tolerance.
- Managing sedation, analgesia, and neuromuscular blockade according to orders and protocol.
- Repositioning the head and extremities as directed to reduce pressure injuries and nerve damage.
- Watching for complications such as accidental extubation, dislodged lines, pressure injuries, facial swelling, hemodynamic instability, and difficulty accessing the patient during an emergency.
Proning is a coordinated team procedure. New ICU nurses should participate only with trained staff and follow their facility’s proning protocol.
Monitoring Devices
Ultrasound Machines
Ultrasound machines provide valuable insights into a patient’s anatomy, aiding in procedures, assessing fluid status, and guiding line placements.
- By emitting sound waves and capturing resulting images, they offer visual and audible feedback, assisting in determining blood flow.
- While they’re not utilized every shift, ultrasound machines are essential ICU equipment, serving various clinical needs beyond pregnancy assessments.
- Physicians, ultrasound technicians, and trained nurses operate these machines, ranging from basic to detailed scans.
Tips for ICU Nurses Assisting With Ultrasound
- Understand why the ultrasound is being performed and what information the team is trying to obtain.
- Prepare the patient, supplies, positioning, and monitoring equipment before the procedure begins.
- Maintain sterile technique when ultrasound is used to guide invasive procedures such as central-line or arterial-line placement.
- Monitor the patient throughout the procedure and communicate any change in condition.
- Do not assume responsibility for interpreting diagnostic ultrasound findings unless that responsibility falls within your training, role, and facility policy.
ICU Bedside Patient Monitors
Bedside monitors continuously display information such as heart rate, cardiac rhythm, oxygen saturation, respiratory rate, temperature, and noninvasive blood pressure. Depending on the patient and available equipment, the monitor may also display invasive arterial pressure, central venous pressure, pulmonary artery pressure, or other hemodynamic measurements.
The colors, waveform positions, labels, and screen layout vary among manufacturers and can often be customized. Learn the conventions used on your unit rather than assuming that a particular color always represents the same measurement. (For example, that blue always indicates oxygen.)
A monitor provides data, but it does not replace assessment. When a reading or alarm does not match the patient’s condition, assess the patient first and then evaluate the electrodes, sensor placement, cables, pressure tubing, waveform quality, alarm limits, and equipment connections.
Tips for ICU Nurses Using Bedside Monitors:
- Set alarm limits according to the patient’s current condition and your facility’s policy.
- Double-check alarms for all your patients at the beginning of the shift; do not rely solely on the previous RN having calibrated the alarms correctly.
- Investigate alarms instead of repeatedly silencing them.
- Check waveform quality before acting on a numerical value.
- Replace loose electrodes and reposition poorly functioning sensors; you would be surprised how often this occurs and skews data.
- Confirm unexpected readings with assessment findings and another measurement method when appropriate.
- Escalate meaningful changes rather than assuming they are caused by equipment error.
Arterial lines
An arterial line is a catheter placed in an artery, most commonly the radial or femoral artery. It provides continuous, beat-to-beat blood pressure monitoring and allows arterial blood samples to be collected without repeated needle sticks.
An arterial-line reading is only useful when the system is functioning correctly. Accuracy depends on proper leveling and zeroing, an appropriate pressure bag setup, secure tubing connections, and a waveform that is not overdamped or underdamped. If the arterial pressure does not match the patient’s condition, assess the patient and troubleshoot the system before using the value to guide treatment.
Nursing responsibilities commonly include:
- Assessing the insertion site for bleeding, drainage, infection, and catheter migration.
- Assessing circulation, color, temperature, sensation, and pulses distal to the insertion site.
- Keeping tubing connections secure to prevent blood loss or air entry.
- Maintaining the pressure bag and flush system according to facility policy.
- Leveling and zeroing the transducer at the appropriate reference point.
- Evaluating waveform quality.
- Comparing the reading with a noninvasive blood pressure when accuracy is questionable.
- Following facility policy for dressing changes, blood sampling, and line removal.
Never administer medication through an arterial line.
Central Venous Pressure (CVP) Monitoring
Central venous pressure, or CVP, estimates the pressure near the right atrium through a central venous catheter. It may provide information about right-sided cardiac pressure and how that pressure changes over time.
CVP should not be treated as a stand-alone measurement of fluid volume or fluid responsiveness. The reading can be affected by factors such as mechanical ventilation, intrathoracic pressure, right ventricular function, vascular tone, patient position, and transducer setup.
Nurses should focus on:
- Properly leveling and zeroing the transducer.
- Evaluating waveform quality.
- Measuring the CVP consistently at the same point in the respiratory cycle when required by facility practice.
- Watching trends rather than reacting to one isolated number.
- Interpreting the measurement alongside the patient’s assessment, vital signs, urine output, laboratory results, and response to treatment.
Cooling Devices
Temperature-management devices may be used to control fever, treat severe hyperthermia, or maintain a prescribed temperature after cardiac arrest. Depending on the facility and clinical situation, temperature control may involve surface pads, cooling blankets, intravascular devices, or a combination of methods.
ICU nurses may be responsible for operating the device, monitoring core temperature, assessing the skin, managing shivering according to protocol, tracking laboratory and electrolyte changes, and watching for dysrhythmias or hemodynamic instability.
Because equipment and protocols vary, nurses should complete device-specific training and follow their facility’s temperature-management policy.
Non-invasive Cardiac Monitors
Noninvasive hemodynamic monitors estimate measurements such as cardiac output, cardiac index, stroke volume, and fluid responsiveness without placing a pulmonary artery catheter. Some systems use sensors placed on the chest or neck, while others combine information from an existing arterial line with patient data.
These values are estimates and should be interpreted as part of the larger clinical picture. Nurses should understand how their unit’s device collects information, recognize poor signal quality, monitor trends, and compare the data with the patient’s assessment and response to treatment.
Temporary Internal Pacemakers
Temporary transvenous pacemakers deliver electrical impulses through a pacing wire inserted through a central vein and positioned inside the heart. They may be used for selected unstable or symptomatic bradyarrhythmias or as a bridge until the underlying problem resolves or a permanent pacemaker can be placed. The wire may be inserted through the internal jugular, subclavian, or femoral vein. Positioning and mobility restrictions depend on the access site, device, provider orders, and facility protocol.
Nursing responsibilities commonly include:
- Continuously monitoring the patient’s heart rhythm and hemodynamic status.
- Confirming that the pacemaker is sensing and capturing appropriately.
- Assessing the insertion site and keeping all connections secure.
- Monitoring for dysrhythmias, bleeding, infection, lead displacement, and failure to capture or sense.
- Knowing what to do if the pacemaker malfunctions or the patient becomes unstable.
Temporary pacing requires specialized training. New ICU nurses should manage these devices only after completing the required unit-specific education and competency validation.
Hemodialysis Machines
Hemodialysis removes waste products and excess fluid from the blood while helping correct electrolyte and acid-base abnormalities. In the ICU, a dialysis nurse commonly performs intermittent hemodialysis at the bedside, although staffing and nursing responsibilities vary by facility.
Hemodialysis may use a temporary or tunneled dual-lumen dialysis catheter. Patients receiving chronic dialysis may instead have an arteriovenous fistula or graft.
ICU nursing responsibilities commonly include:
- Monitoring blood pressure and overall hemodynamic tolerance.
- Assessing the dialysis access for bleeding, infection, patency, and secure connections.
- Reviewing relevant laboratory results.
- Coordinating medication timing because dialysis can remove certain medications from circulation.
- Monitoring for complications such as hypotension, dysrhythmias, bleeding, disequilibrium symptoms, and access problems.
Intermittent hemodialysis can cause relatively rapid fluid and electrolyte shifts. Patients who are severely hemodynamically unstable may require a slower form of kidney-replacement therapy.
Continuous Renal Replacement Therapy (CRRT)
Continuous renal replacement therapy, or CRRT, is a slower form of kidney-replacement therapy that runs continuously or near-continuously. It is frequently used for critically ill patients who need gradual fluid and solute removal because they may not tolerate the faster shifts associated with intermittent hemodialysis.
CRRT usually requires a dual-lumen central venous dialysis catheter that can provide adequate blood flow. The specific catheter, insertion site, anticoagulation method, machine settings, and division of nursing responsibilities vary by facility.
Depending on unit policy and training, ICU nurses may be responsible for:
- Assessing the catheter site and keeping all connections secure.
- Monitoring blood pressure, temperature, fluid balance, and neurological status.
- Recording hourly intake, output, replacement fluid, dialysate, and net fluid removal.
- Monitoring electrolytes, acid-base status, blood counts, and coagulation results as ordered.
- Watching the circuit for clotting, air, access-pressure problems, and decreasing filter performance.
- Responding to alarms according to the device instructions and facility protocol.
- Monitoring for hypothermia, bleeding, electrolyte abnormalities, and hemodynamic instability.
CRRT alarms should not be repeatedly overridden without identifying the cause. New ICU nurses require machine-specific education and supervised practice before managing CRRT independently; this is a complicated task!
Medication Administration Equipment
IV Pumps
Infusion pumps are essential devices that accurately deliver medications, fluids, and blood products, which are crucial for maintaining stable hemodynamics and administering life-saving treatments.
- Different brands such as Alaris, B. Braun, Maxter, and Medtronic operate uniquely and require specific training for proficiency. Mastering these pumps is vital to ICU expertise.
- Medications are administered from either IV bags or syringes, flowing through tubing at a programmed rate set by nurses. Syringe pumps are used when medications are dispensed from syringes.
- The specialized tubing of IV pumps delivers medications into the patient’s bloodstream, typically through a peripheral IV or central venous catheter.
Tips for ICU Nurses using IV Pumps:
- Verify settings thoroughly, especially when taking over care of a patient with ongoing medication infusion.
- Remain vigilant for any signs of infiltration.
- For medications that can cause significant tissue injury, assess for extravasation and follow the medication-specific response protocol immediately if it is suspected.
- Ensure precise management of ICU drips.
- Always confirm compatibility before administering two medications through the same line.
- Always trace and label your lines, so you know what medications are infusing where.
IV pumps are only the equipment. The harder part is understanding what the medication is doing, which assessment findings matter, and when a change requires immediate action.
Cardiac Support Equipment
Impellas and Intra-Aortic Balloon Pumps (IABP)
Impellas and intra-aortic balloon pumps, or IABPs, are temporary mechanical circulatory-support devices. Both may be used when the heart cannot maintain adequate circulation, but they work differently. An Impella is a catheter-based pump that moves blood from the left ventricle into the aorta, reducing the left ventricle’s workload while supporting forward blood flow.
An IABP sits in the aorta and inflates during diastole and deflates immediately before systole. This can improve coronary perfusion and reduce the resistance the left ventricle pumps against. Femoral access is common, but the access site and placement method vary by device and clinical situation. Do not assume that both devices must be placed through opposite groins.
Nursing responsibilities vary by device but commonly include:
- Monitoring the patient’s hemodynamic response.
- Assessing the insertion site for bleeding, hematoma, drainage, and device migration.
- Performing frequent neurovascular assessments distal to the access site.
- Monitoring the device console, waveforms, position indicators, and alarms.
- Maintaining positioning and mobility restrictions appropriate to the device and access site.
- Monitoring for complications such as bleeding, limb ischemia, hemolysis, dysrhythmias, device migration, infection, and worsening hemodynamic instability.
Anticoagulation is individualized according to the device, patient condition, bleeding risk, and provider orders. Never assume that every patient with mechanical circulatory support will receive the same anticoagulation regimen.
These devices require specialized training. If the patient’s condition changes or the console indicates a problem, follow the device-specific troubleshooting process and contact the appropriate experienced clinician immediately.
Defibrillators
Defibrillators deliver electrical therapy for specific life-threatening dysrhythmias. Defibrillation is used for shockable cardiac-arrest rhythms such as ventricular fibrillation and pulseless ventricular tachycardia. Synchronized cardioversion is used for selected unstable tachydysrhythmias when a pulse is present. The appropriate mode, energy level, pad placement, and medication sequence depend on the rhythm, clinical situation, current resuscitation guidelines, and facility equipment.
Some basic information about defibrillators:
- They’re utilized during emergencies, with pads placed on the patient and energy levels selected based on the situation.
- Defibrillators not only deliver shocks but also provide cardiac monitoring during urgent situations, such as cardiac arrests.
- Unlike other common ICU equipment, defibrillators are not routinely attached to patients and are reserved for codes or specific cardiac scenarios.
- Defibrillators are typically located on the code cart.
Tips for Nurses Working With Defibrillators:
- Apply pads firmly to clean, dry skin in the appropriate position.
- Confirm the rhythm, selected mode, and prescribed or protocol-directed energy level.
- If performing synchronized cardioversion, confirm that synchronization markers appear correctly before delivering the shock.
- Verbally and visually confirm that everyone is clear of the patient, bed, and attached equipment.
- Keep oxygen sources and flammable materials away from the pad area.
- Resume chest compressions immediately after defibrillation during cardiac arrest unless the current resuscitation algorithm directs otherwise.
- Continue monitoring after stabilization because dysrhythmias may recur.
- Follow current ACLS guidance and the instructions for the specific defibrillator used by your facility.
ICU equipment becomes less intimidating once you understand what each device is doing, what information it provides, and how it connects to the patient’s condition.
You are not expected to master every machine before orientation ends. Your responsibility is to learn the equipment used on your unit, recognize when the patient or equipment requires attention, and know when to get help.
Knowing the Equipment Is Only the Beginning
Recognizing an arterial line, ventilator, CRRT machine, or IABP is one thing. Understanding what the device tells you about your patient (and knowing what requires action) is where ICU nursing becomes more complex. Breakthrough ICU helps new critical-care nurses connect equipment, medications, assessment findings, disease processes, and daily workflow so the ICU begins making sense as a whole.
FreshRN Podcast Episodes About ICU Equipment
In this 👇 FreshRN Podcast episode, we discuss arterial lines, fluid monitoring devices, and cooling devices.
In Part 2, we discuss CRRT, HD, impellas and intra-aortic balloon pumps, internal pacing, proning devices, non-invasive cardiac monitors, and general advice to new ICU nurses.
More Resources for ICU Nurses
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