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ICU Nurse interview questions and how to answer them

An ICU interview is mostly a safety check dressed up as a conversation. The manager and the charge nurses on the panel want to know whether they can leave you alone with a patient on a vent and a handful of drips in the middle of the night. Here's what they ask, why they ask it, and how to answer like someone who's already stood at that bedside.

11 questions7 minute read

Part 1

1.You have two patients. One's pressure is dropping and the other is pulling at their endotracheal tube. What do you do first?

Why they ask

This is the classic ICU prioritization question. They want to hear you think in airway, breathing and circulation order and use the people around you.

How to answer

  • Name the airway threat first: an unplanned extubation can kill faster than a slow pressure drop
  • Call for help out loud, grabbing a nearby nurse or the charge nurse for the other room
  • Secure the tube, check placement and sedation, and reapply soft restraints only per your unit's policy
  • Then move to the hypotensive patient: check the art line waveform, the pumps and the last labs, and page the provider

2.Tell me about a time you caught a patient getting worse before anyone else noticed.

Why they ask

Early recognition is the core ICU skill. They're listening for real assessment detail, not just a happy ending.

How to answer

  • Set the scene briefly: the unit, the patient, what looked normal on paper
  • Describe the specific cue you noticed, like new confusion, mottled knees or a creeping heart rate
  • Explain exactly who you called and what you said, ideally using SBAR
  • Close with the outcome and what you'd watch for sooner next time

3.How do you titrate a vasopressor like norepinephrine?

Why they ask

They need to know you understand the drug, the goal and the safety checks, not just the pump buttons.

How to answer

  • Start from the ordered target, usually a mean arterial pressure goal, and the titration parameters in the order
  • Talk about running it through a central line when possible and watching a peripheral site closely if not
  • Mention checking the art line against a cuff pressure when the numbers don't match the patient
  • Explain when you'd call the provider, such as climbing doses or a patient who isn't responding
4.A physician gives you a verbal order you think is unsafe. Walk me through what you do.

Why they ask

The ICU runs on nurses questioning orders. They want someone who pushes back respectfully and follows the chain of command.

How to answer

  • Clarify the order directly with the physician and state your specific concern, such as an allergy or a lab value
  • Hold the order while you clarify, and document the conversation
  • If it's still unsafe, go to your charge nurse and then the unit's escalation path
  • Keep the focus on the patient, not on who's right
5.A family wants everything done for a patient the team thinks won't survive. How do you support them?

Why they ask

Goals-of-care conflict comes up constantly in critical care. They want warmth and honesty without you overstepping the provider's role.

How to answer

  • Listen first and find out what the family understands and what they're afraid of
  • Ask for a family meeting with the intensivist, palliative care and the chaplain or social worker
  • Keep explaining what you're doing at the bedside in plain words so they trust the care
  • Respect their decision while making sure the team's view is heard clearly and kindly

Part 2

6.The ventilator alarms high pressure. What are you thinking?

Why they ask

A quick way to check whether you know vent basics and troubleshoot in a sensible order.

How to answer

  • Look at the patient first: are they biting the tube, coughing, fighting the vent or desaturating
  • Check for secretions and suction, and check for a kinked circuit
  • Listen to lung sounds for bronchospasm or a possible pneumothorax
  • Call respiratory therapy early, and if you can't fix it fast, bag the patient and get help
7.Tell me about a medication error or near miss you were part of.

Why they ask

Everyone has one. They're testing honesty and whether you report and learn instead of hide.

How to answer

  • Pick a real, low-harm example and own your part plainly
  • Explain how you caught it or how it was caught, and how you told the provider and the patient's team
  • Mention filing the safety report your hospital uses
  • Describe the habit you changed afterward, like independent double checks on high-alert drips
8.What would you do if you were assigned a device you'd never used, like a CRRT machine?

Why they ask

ICUs are full of equipment new hires haven't touched. They want someone who asks rather than guesses.

How to answer

  • Say plainly that you'd tell the charge nurse before taking the assignment
  • Ask for a nurse who's competent on it to go through the setup and alarms with you
  • Use the unit's policy and the manufacturer's quick guide, not memory
  • Ask when the next training or competency sign-off is so it doesn't stay a gap
9.How do you handle a shift where you can't get everything done?

Why they ask

Some ICU shifts are pure triage. They're listening for how you decide what can wait and whether you ask for help early.

How to answer

  • Name what never slides: assessments on unstable patients, time-critical meds and safety checks
  • Explain what you'd push to later or hand off, like a bath or non-urgent charting
  • Tell the charge nurse early, not at the end of the shift
  • Give an honest handoff about what's still open
10.Tell me about a conflict with a coworker and how it ended.

Why they ask

ICU teams work shoulder to shoulder through hard nights. One difficult personality can sink a unit.

How to answer

  • Choose a real disagreement, like a handoff dispute or a split assignment
  • Show that you talked to the person privately and early
  • Focus on what you each needed and how you agreed to work
  • End with how the working relationship looks now

Part 3

11.Why the ICU, and why our unit?

Why they ask

They want to know you'll stay through the hard first stretch and that you know what kind of ICU this is.

How to answer

  • Give a specific reason, like wanting to manage the whole patient and understand the physiology
  • Name what you know about this unit: medical, surgical, cardiac, neuro or trauma
  • Connect a past experience to their patient population
  • Mention where you'd like to grow, such as the CCRN or becoming a preceptor

Questions to ask them

Ask at least two. It shows you're picking them too.

  • How long is orientation, and will I have one consistent preceptor or several?
  • What's the usual assignment on this unit, and what happens when acuity is high and staffing is short?
  • How does the charge nurse support newer nurses during a rapid response or a code?
  • What do your strongest nurses in their first stretch here do differently?
  • Is there support for getting the CCRN, like review courses or paid exam fees?

Related interview guides

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