My name is Patrick Hutzel. I am a critical care registered nurse and have been working in critical care nursing for over 25 years in 3 different countries, where I have worked as a nurse manager for over 5 years, and I’ve been consulting and advocating for families in intensive care since 2013 here at intensivecarehotline.com. I can very confidently say that we have saved many lives with our consulting and advocacy, which you can verify on our testimonial and podcast sections at intensivecarehotline.com.

Here at intensivecarehotline.com, we instantly improve the lives for families of critically ill patients in intensive care so that you can make informed decisions, have peace of mind, control, power and influence, making sure your loved one always gets the best care and treatment in intensive care.

Today I have another quick tip for you. I have a question from one of our members, Sonia, who asks about her husband’s Pseudomonas infection. Sonia writes in:

“Hi Patrik, 

My husband is in the ICU with pneumonia, and lately the respiratory culture is growing Pseudomonas aeruginosa, according to the latest respiratory culture test result. He previously completed courses of antibiotic medications, cefepime, and tobramycin nebulizer treatments. He’s on the current ventilator settings: pressure-regulated volume control assist control, set tidal volume is 500 mL, PEEP 6 centimeters of water, and MAP is 11 to 15. My question is, did the antibiotics finish because the infection had been treated? Or when does my husband, Sam, need to be checked to see if it has cleared? The doctor said no need to recheck, but why? Please help explain how the infection and antibiotics are going and working.

Thank you so much.”

From Sonia.

What is Pseudomonas aeruginosa, and why should you be concerned?

Sonia, thank you for reaching out and for advocating so hard for your husband Sam, and also thank you for being a member of our intensivecaresupport.org membership for families of critically ill patients in intensive care. The fact that you are a member and that you are asking these questions is exactly what families need to do in the ICU, and I want to help you get the answers you deserve.

Pseudomonas aeruginosa is a type of gram-negative bacteria that is commonly found in hospital and ICU environments. It is one of the most challenging bacteria to treat in ICU because it is highly adaptable and has a well-known ability to develop resistance to antibiotics, often very quickly.  When a respiratory culture grows Pseudomonas aeruginosa, it means the bacteria have been identified in Sam’s airways or lungs. This can happen in a few different ways:

Ventilator-associated pneumonia (VAP) is one of the most common ICU infections in ventilated patients.

Hospital-acquired pneumonia — pneumonia that develops more than 48 hours after admission. Hospitals are “dirty,” which means there are so many infected, highly infectious patients in the hospital that infections spread very quickly despite all the best efforts from hospital staff to follow best infection control practices such as washing hands, wearing gloves, wearing aprons, and so forth.

Colonization — where bacteria are present in the airways but not necessarily causing active infection.

The key point here, Sonia, is that the distinction between active infection and colonization matters enormously, and it is one of the first things you need to ask the ICU team about. This is exactly the kind of question we help families ask during a consulting call.

Understanding the antibiotics: cefepime and tobramycin nebulizer

The two treatments Sam received are both used specifically against Pseudomonas aeruginosa, and they work in different ways.

Cefepime — intravenous antibiotic. Cefepime is a 4th-generation cephalosporin antibiotic given intravenously. It works by attacking the outer cell wall of gram-negative bacteria like Pseudomonas, causing the bacterial cells to rupture and die. It is considered one of the first-line antibiotics for Pseudomonas infections in the ICU. A typical course runs anywhere from 7 to 14 days, depending on severity, response, and the patient’s clinical condition.

Tobramycin nebulizer — inhaled antibiotic. Tobramycin nebulizer is an inhaled aminoglycoside antibiotic. Rather than going through the bloodstream, it is delivered directly into the airways via the ventilator circuit. This allows very high concentrations of the antibiotic to reach the lungs — far higher than you could safely give intravenously — with lower risk of systemic toxicity. Tobramycin nebulizer is particularly useful in ventilated patients because it directly targets the site of infection and can be effective against Pseudomonas strains that may be resistant to IV antibiotics alone.

The clinical context here is that the combination of a systemic IV antibiotic like cefepime and an inhaled antibiotic like tobramycin nebulizer is a recognized dual therapy approach for serious Pseudomonas pneumonia in ventilated patients. Both targeting the same organism from different routes can improve outcomes.

Did the antibiotics work? How ICU doctors assess treatment response

This is the heart of your question, Sonia, and it is a really important one. Antibiotic courses in ICU are not always finished because the infection has been fully eradicated. Sometimes they are finished because:

The prescribed duration has been completed i.e., 7 days, 10 days, or 14 days of treatment.

Clinical markers of improvement are present: temperature is normalizing, white cell count is improving, less secretions, and improved oxygenation.  The treating team has made a clinical decision that continuing antibiotics poses more risk, i.e. — antibiotic resistance, kidney toxicity — than benefit.  The culture was deemed a colonization rather than an active infection.

The key clinical markers the ICU team will typically assess include:

Fever pattern — Is Sam’s temperature normalizing?

White blood cell count (WBC) — is it trending down towards a normal range?

C-reactive protein (CRP) or procalcitonin — are these inflammatory markers falling?

Chest X-ray or CT (Computed Tomography) — is the consolidation or infiltrate improving?

Sputum appearance — is there less purulent, thick, or colored secretion via the ET (endotracheal) tube or the tracheostomy?

Oxygenation — are Sam’s oxygen requirements and ventilator settings trending in the right direction?

Why did the doctor say no need to recheck?

I completely understand, Sonia, why this answer from the doctor feels unsatisfying, and honestly it warrants a more detailed explanation than you appear to have received. There are a few reasons a doctor might say no need to recheck after a pseudomonas treatment course:

Clinical response is the guide. Many ICU guidelines now support using clinical improvement rather than repeat cultures to guide stopping antibiotics. If Sam’s clinical markers have all improved, the team may be confident the treatment has worked.

Culture-based decisions have limitations. A repeat culture could still grow Pseudomonas even after successful treatment because of colonization — bacteria living in the airway without causing active infection — and this can sometimes lead to unnecessary prolonged antibiotic courses.

Antibiotic stewardship. ICUs are under guidelines to avoid overtreatment with antibiotics to minimize the risk of creating resistant organisms. The team may be deliberately stopping treatment to prevent resistance developing.  The team may have reassessed and concluded the Pseudomonas was a colonizer, not an active infection.

Here’s what you should ask, Sonia. If the doctor says no need to recheck, it is not a complete answer for a family member advocating for their loved one. You have every right to ask the ICU team:

What clinical markers are you using to confirm the infection has responded?

What are Sam’s current CRP, WBC, and temperature trends?

Is the pseudomonas being treated as active infection or colonization?

These are reasonable and important questions.

Sam’s ventilator settings — what do they tell us?

Let me briefly explain Sam’s current ventilator settings so you can understand what they mean for his respiratory situation.

Ventilator mode: Pressure Regulated Volume Control Assist (PRVC/A). This is a combined mode that delivers a set volume of air with each breath while automatically adjusting the pressure needed to deliver that volume. It is one of the most commonly used modes in ICU for patients with pneumonia and respiratory failure. The assist component means Sam can trigger his own breaths on top of the machine-delivered breaths, which is a good sign if he’s doing so.

Set tidal volume: 500 mL. This is the amount of air delivered with each breath. For most adults, 6 to 8 mL per kilo of ideal body weight is the lung protective target. Some literature might suggest 7 to 10 mL. 500 mL is a reasonable tidal volume depending on Sam’s size.  PEEP: 6 centimeters of water. PEEP stands for positive end-expiratory pressure. It keeps the small air sacs — alveoli — in the lungs open between breaths. A PEEP of 6 is a relatively low to moderate level, suggesting Sam’s lungs are not severely collapsed or flooded at this stage. MAP: 11 to 15 centimeters of water, currently 15. Mean airway pressure reflects the average pressure in the airways across a full breath cycle. A MAP of 15 is in a moderate range. The fact that it is at the top of the set range may suggest the lungs need a little more support to open fully, which is consistent with a recovering pneumonia.

Ventilator trends matter.  The ventilator settings suggest that your husband Sam is receiving moderate respiratory support. The key question going forward is whether these settings are trending in the right direction — towards lower support — which would indicate his lungs are recovering. If settings are staying the same or increasing, that is an important clinical sign.

Treatment options for Sam — what should the ICU team be considering?

Based on what you have shared, Sonia, here is what I would want the ICU team to be actively considering for Sam:

Monitoring for treatment response or recurrence. Even if the antibiotic course is complete, Sam needs ongoing monitoring of his inflammatory markers, sputum characteristics, temperature, and ventilator requirements. Pseudomonas pneumonia can recur, particularly in ventilated patients, and the team should have a clear plan for how they will detect and respond to that.

Ventilator weaning plan. As the infection resolves, the focus should shift towards a systemic ventilator weaning plan. This means progressively reducing the level of ventilation support, conducting daily spontaneous breathing trials (SBTs), and working towards either extubation — removing the breathing tube — or, if extubation is not possible, progressing towards a tracheostomy assessment. Your husband already has a tracheostomy.

Sensitivity-guided antibiotic choices. The respiratory culture from last week should include antibiotic sensitivity results — a list of which antibiotics the pseudomonas strain responds to and which it is resistant to. It is critical that the antibiotics used were active against Sam’s specific strain. If you have not seen or been given the full sensitivity results, you need to ask for them as part of Sam’s medical records.

Reassessment of ventilator-associated infection prevention. In ventilated patients in ICU, ongoing prevention of further ventilator-associated pneumonia (VAP) episodes involves strict oral hygiene — for example with chlorhexidine — regular position changes, subglottic suctioning (most tracheostomy tubes have that capability), and minimizing unnecessary sedation to support spontaneous breathing.

Escalation plan. Ask the ICU team: if Sam develops another Pseudomonas episode, what is the plan? Are there alternative antibiotic options? Has an infectious disease been consulted? ID specialist input is extremely valuable in complex ventilated patients with Pseudomonas.

Why getting all of Sam’s medical records is absolutely critical, I want to say this very directly to you, Sonia. You need to get access to all of Sam’s medical records, and you need to start right now. I know you already have them because you’re one of our members, but this is for anyone who is in a similar situation and wonders what to do.

You need to get access to all medical records

because the full medical records will include:

The full respiratory culture report from last week, including the Pseudomonas sensitivity panel.  Daily progress notes from the ICU doctors, ICU nurses, specialists, etc.

Medication administration records — exactly when cefepime and tobramycin were given, for how long, and at what doses. Blood test results, including white blood cell count, CRP (C-reactive Protein), procalcitonin, and cultures, but also electrolytes, coagulation panel, liver panel, and so forth. Daily ventilation parameters and trending data. Nursing notes reflecting Sam’s day-to-day clinical status.  Fluid balance charts, vital signs, and the list goes on.  Leave no stone unturned.

Without Sam’s medical records, you are relying entirely on verbal summaries from the ICU team, which are often incomplete, rushed, or filtered. The records tell the full clinical story. They allow you to understand exactly what has been done, ask better questions, and advocate more effectively.

You have the right to these records. You have a legal right to Sam’s medical records as his wife and the power of attorney. In pretty much all English-speaking countries — US, Canada, Australia, UK — you can request them directly from the hospital’s health information or medical records department. I strongly encourage every family I work with to get these records now, as soon as possible, and review them. In this day and age, the hospital should give you access through either a website with a username and password or through an app where they store their medical records. Any delays are red flags, because you need to wonder what they have to hide. Access to medical records should be immediate.

How can a consulting call with myself here at intensivecarehotline.com help you right now?

What you’re experiencing, Sonia — a husband in ICU, technical answers that raise more questions than they answer, a doctor who says no need to recheck without full explanation — this is exactly why I created intensivecarehotline.com.

During a one-on-one consulting call with myself or one of my senior team members, we can:

Review Sam’s medical records with you and explain exactly what they mean.  Help you understand the antibiotic culture and sensitivity results. Formulate the right clinical questions to ask Sam’s ICU team. Speak directly with Sam’s ICU doctor or nurse on your behalf if needed. Explain Sam’s ventilator settings and what weaning should look like.

Advocate for a proper treatment plan, including a weaning protocol, infection monitoring, and infection prevention plan.

The action step here is to book a consulting call with myself. I offer a 15-minute free consultation call, then I offer paid consulting and advocacy options.

Long-term ventilation at home — could Sam come home?  I also want to plant a seed for you about the future, Sonia, because if Sam cannot be weaned off the ventilator, or if he ends up needing a tracheostomy and long-term ventilation, there is a pathway that most families and some ICUs are never told about. Through my other organization, Intensive Care at Home — and you can find more information at www.intensivecareathome.com  — we provide specialist intensive care at home nursing for ventilator-dependent patients, including patients on invasive mechanical ventilation with a tracheostomy, non-invasive ventilation, BiPAP, CPAP, and patients with complex needs including palliative care at home. We are third-party accredited and currently operating all around Australia. Even if you’re watching this in the US or in the UK, you can reach out to us and we can help you there privately.

The benefits of going home on ventilation with tracheostomy rather than staying in ICU or being warehoused in a nursing home — which can’t look after ventilated patients anyway — include:

Sam comes home to his family and his own environment.

It dramatically reduces infection risk compared to ongoing hospital admission.

There is much better quality of life and psychological well-being for both Sam and your family, because you get 24-hour critical care registered nurse support in the home.

As a side benefit, there are cost savings for the healthcare system. Intensive Care at Home cuts the cost of an ICU bed by approximately 50%.

That means funding bodies as well as hospitals have an interest in Intensive Care at Home, and we are also freeing up the most sought-after bed in a hospital — the ICU bed.  With Intensive Care at Home and home ventilation, it’s a real option for Sam, because we have successfully transitioned many ventilator-dependent patients’ home who were told they could never leave ICU, or who were told the only option is to die. The ICU is not the only option, and it is not always the best option for the long term. Go to intensivecareathome.com to learn more or call us on one of the numbers on the top of our website.

Key takeaways for you, Sonia:

Pseudomonas aeruginosa is a serious but treatable ICU infection. The key is knowing whether it has been treated effectively or simply suppressed. Cefepime IV and tobramycin nebulizer are appropriate frontline antibiotics for pseudomonas pneumonia in ventilated patients.  Antibiotic courses are stopped based on clinical response, not always repeat cultures, but the team should clearly explain what clinical markers support that decision.

No need to recheck is not a complete answer. You deserve a full explanation of Sam’s inflammatory markers, culture sensitivity results, and treatment response.

Sam’s ventilator settings are in the moderate support range. The critical question is whether they are trending towards weaning.

Get all of Sam’s medical records now. They are your most powerful advocacy tool.

A consulting call with myself at intensivecarehotline.com will help you ask the right questions, review the records, and directly advocate with Sam’s ICU team.

If Sam needs long-term ventilation, intensivecareathome.com will bring him home safely with 24-hour critical care nurse support.

I have worked in critical care nursing for 25 years in three different countries where I worked as a nurse manager for over five years in intensive care. And I’ve been consulting and advocating for families in intensive care since 2013 here at intensivecarehotline.com. And I can very confidently say that we have saved many lives with our consulting and advocacy, because of our insights, and you can verify that on our testimonial section  at intensivecarehotline.com and you can verify it on our intensivecarehotline.com podcast section, where we have done client interviews.  And because our advice is absolutely life-changing, right?

The biggest challenge for families in intensive care is simply that they don’t know what they don’t know. They don’t know what to look for, they don’t know what questions to ask, they don’t know their rights, and they don’t know how to manage doctors and nurses in intensive care. And that’s why we help you to improve your life instantly, making sure you make informed decisions, have peace of mind, control, power, and influence, making sure your loved one gets the best care and treatment always. And that’s why you can join a growing number of members and clients that we have helped over the years, saving their loved ones’ lives.

And that’s why I do one on one consulting and advocacy over the phone, Zoom, WhatsApp, whichever medium works best for you. And I talk to you and your families directly. I handhold you through this once-in-a-lifetime situation that you simply cannot afford to get wrong. And when I talk to families directly, I also talk to doctors and nurses directly, asking all the questions that you haven’t even considered asking but must be asked when you have a loved one critically ill in intensive care.  I also represent you in family meetings with intensive care teams.

We also do medical record reviews in real time so that you can get a second opinion in real time. We also do medical record reviews after intensive care, so, if, in case you have unanswered questions, if you need closure or if you are suspecting medical negligence.

We also have a membership for families of critically ill patients in intensive care, and you can become a member if you go to intensivecarehotline.com. If you click on the membership link or if you go to intensivecaresupport.org directly. In the membership, you have access to me and my team 24 hours a day in the membership area and via email, and we answer all questions intensive care-related. In the membership, you also have exclusive access to 21 e-books and 21 videos that I’ve personally written and recorded. And all of that will help you to improve your life instantly, make informed decisions, have peace of mind, control, power, and influence, making sure your loved one gets the best care and treatment always.

And all of that you get at intensivecarehotline.com. Call us on one of the numbers at the top of our website or simply send us an email to support at intensivecarehotline.com with your questions.

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Thank you so much for watching.

This is Patrik Hutzel from intensivecarehotline.com, and I will talk to you in a few days.

Take care for now.