Functional Nurse Academy Success Stories: Koral Worsham, RN and a Root-Cause Approach to Mold-Related Illness

Jun 12 / Melissa Schreibfeder, BSN, RN, BC-FMP

🎧 Listen to my podcast with Koral below!

When Koral Worsham, RN, BC-FMP first entered nursing nearly two decades ago, she was driven by a desire to help people heal. Over the course of her 19-year nursing career, she gained experience in Pediatrics, General Medicine, Oncology, the NICU, Emergency Medicine, Outpatient Clinics, and Telephone Triage. Yet despite her extensive clinical experience, she often felt frustrated by a healthcare system focused primarily on symptom management rather than uncovering the underlying causes of illness.

That frustration became deeply personal when her mother was diagnosed with Parkinson's disease.

As Koral searched for answers beyond conventional treatment options, she discovered functional medicine and began learning about the profound impact that nutrition, gut health, environmental exposures, lifestyle factors, and toxic burden can have on chronic disease. Determined to expand her knowledge and serve patients differently, she enrolled in the Functional Nurse Academy.

What Koral loved about Functional Nurse Academy

"Whenever I talk about the Functional Nurse Academy, I rave about it because it gave me all of the foundational knowledge in functional medicine that I needed—and even taught me how to start a business. I always encourage other nurses to take the leap of faith and enroll. Honestly, it was absolutely worth the investment, and I have made back my investment at least tenfold."
After completing the Functional Nurse Academy in 2024, Koral founded Redeeming Roots Functional Medicine, where she now helps clients uncover and address the root causes of chronic illness through a whole-person approach that supports the mind, body, and spirit.

Prefer to watch? Watch my interview with Koral below!

Koral's Client Case Study:
 Uncovering Mold-Related Neuroinflammatory Illness

From Debilitating Symptoms to Recovery: Functional Nursing-Led Care for Neuroinflammatory Illness

I first connected with the patient by telehealth after a referral from a previous client. He joined the scheduled call scared and convinced he had a progressive neurologic disease. He’d already seen numerous specialists and had a normal EMG, but his symptoms—migratory muscle twitching, numbness in the hands, electric shock-type sensations in an ankle, nighttime pulsing and facial twitching, severe sleep disruption, brain fog, anxiety, and steady unintentional weight loss—were so bad he couldn’t work or function normally. He did not volunteer environmental concerns during that first visit; it was only after a detailed investigation that we discovered his symptoms improved when he was away from his secondary home and that there was a persistent musty odor in parts of the house. That pattern was the clue we needed to move the workup toward an environmental focus.

On that first telehealth visit I did what I always do: I listened. I spent the time to get a full, contextual story—when symptoms flare or ease, where he is when they change, any recent exposures or bites, sleep and activity patterns—because those details matter. Based on the history I instructed him to complete a visual contrast sensitivity (VCS) test as a quick, inexpensive screen to help decide whether to pursue environmental testing. The VCS supported moving forward.


What I implemented and coordinated

  • Environmental testing: I arranged ERMI home testing and reviewed the results with him on a follow-up call. The ERMI showed a significant hidden mold burden in the home.

  • Labs and CIRS panel: I ordered a CIRS panel along with routine bloodwork and inflammatory markers to help quantify biotoxin-related inflammation (markers like Complement C4a, MMP-9, VEGF, MSH, etc.). These markers helped us prioritize the next steps and track progress.

  • Marcons testing: I included Marcons testing because it gives important information about nasal colonization and biofilm presence. A positive Marcons can affect how we use binders, whether we emphasize nervous-system modulation, and what antimicrobial strategies or intranasal therapies the prescriber might choose. In this case, Marcons returned positive for Staphylococcus with biofilm, which directly informed the collaborative treatment plan.

  • Team coordination and prescribing: I connected him with a prescriber for low-dose naltrexone (LDN) to help calm the nervous system and modulate immunity, and for prescription-strength binders when tolerated. I handled the follow-up labs and kept lines of communication open between the patient and prescribing partner.

  • Practical exposure counseling: During telehealth visits I counseled him to temporarily remove himself from the contaminated environment while remediation options were arranged and gave prioritized, doable steps to reduce exposure right away.

Interventions I led as a Functional RN

  • Education and symptom support: I gave phased, practical guidance on anti-inflammatory nutrition, graded activity pacing, sleep hygiene, hydration, and micronutrient support tailored to his labs.

  • Care coordination and monitoring: I scheduled short, frequent telehealth check-ins to review results, track symptom diaries, and document functional outcomes. I also made sure everyone on the team had the same plan.

  • Stepwise oversight: I supported initiation and tolerability monitoring for LDN and binders, tracked symptom response, and worked with prescribers on Marcons-directed therapy.

Clinical course and outcome

Within weeks of temporary removal from the exposure and after starting the coordinated supportive and targeted treatments, he began to improve—sleep normalized, twitching lessened, muscle pain eased, cognition cleared, and he returned to work. Over the following months he continued to gain function while remediation and a stepwise detox plan continued. He remains under active monitoring and reports he is 80–90% better.


Practical tips for other Functional Nurses

  • Start by listening. Take the time to get the full story—where symptoms change, odors, recent changes. Those details often point to next steps.

  • Use cheap, quick screens early. A VCS and ERMI can prioritize testing and interventions and save patients months of low-yield referrals.

  • Order a targeted CIRS panel when exposure is likely. Markers like C4a, MMP-9, VEGF, MSH—and including Marcons—give you a clearer picture of inflammatory/biotoxin activity and help decide whether to emphasize binders, nervous-system support, or antimicrobial strategies.

  • Give one or two immediate, doable actions. During the visit, offer concrete steps patients can take right away so they feel empowered and you can see early changes.

  • Coordinate, be the planner: Send the ERMI to order, arrange labs, loop in prescribers for LDN or binders, and give patients a clear written summary to bring to other providers. Clear communication boosts adherence.

  • Track function, not just labs. Ask about sleep, work ability, and daily tasks—those measures matter most to patients.

  • Keep follow-ups short and frequent. Quick telehealth check-ins keep momentum and let you catch problems early.

  • Set expectations. Tell patients what tests are for, give realistic timelines, and normalize gradual recovery so anxiety doesn’t derail progress.

  • Build a network. Reliable prescribers, testing vendors, and remediation resources make moving from testing to treatment smooth—and patients notice.

About Koral Worsham, RN

Koral Worsham is the founder of Redeeming Roots Functional Medicine. She is a Registered Nurse with over 19 years of clinical experience across multiple specialties, including Pediatrics, Oncology, NICU, Emergency Medicine, General Medicine, and Outpatient Care.

Passionate about helping individuals uncover the root causes of chronic illness, Koral specializes in holistic wellness education with a particular interest in gut health, environmental medicine, and personalized lifestyle interventions. She believes that true healing occurs when the whole person—mind, body, and spirit—is addressed.

Through Redeeming Roots Functional Medicine, Koral empowers clients to move beyond symptom management and pursue lasting wellness through a root-cause approach.

Koral's Website: https://redeemingrootswellness.com/
Offers: $100 off any wellness package + Complimentary Discovery call

Frequently Asked Questions About Becoming a Functional Nurse

What is a functional nurse?

A functional nurse is a licensed nurse who applies the principles of functional medicine to educate and empower clients by helping them identify and address potential root causes of health concerns. Functional nurses focus on nutrition, lifestyle, sleep, stress management, environmental influences, and other evidence-informed approaches while practicing within their nursing scope of practice.

What is the difference between a functional practice owned by a NP and RN or LPN?

Nurse practitioners may operate a medical practice where permitted by state law. Depending on their state's regulations, NPs may diagnose medical conditions, order and interpret laboratory testing, prescribe medications, and provide medical treatment.

RNs and LPNs can own and operate independent wellness-focused functional nursing practices. Rather than diagnosing or treating medical conditions, they educate and empower clients through personalized wellness plans, nutrition and lifestyle education, health coaching, specialty laboratory education and on going support.

How Do Non-Advanced Practice Functional Nurses Utilize Laboratory Testing?

RNs and LPNs can access both conventional and specialty laboratory testing through partnerships with functional medicine laboratories. These partnerships allow nurses to order testing through a physician network at affordable wholesale pricing, while practicing within their professional scope.

While nurse practitioners (NPs) may have the authority to diagnose medical conditions and independently order laboratory testing depending on their state laws, non-advanced practice nurses use laboratory data to educate clients about potential patterns of dysfunction. Laboratory findings can also help guide personalized wellness recommendations and support collaboration with the client's healthcare team to optimize health outcomes.

Please note: Certain states, including New Jersey (NJ) and Rhode Island (RI), have restrictions on laboratory ordering through some functional medicine laboratory networks.

Does Functional Nurse Academy provide continuing education for nurses?

Functional Nurse Academy is an approved provider of continuing nursing education. Graduates receive 90 nursing contact hours, approved for LPNs, RNs, and NPs.

The program combines comprehensive functional medicine education with practical application, case studies, and business mentorship, giving nurses the knowledge, tools, and confidence to launch and grow their own functional wellness businesses.

Can I become board certified after completing Functional Nurse Academy?

Yes! Functional Nurse Academy graduates are eligible for the following practitioner level board certifications through American Association of Natural Wellness Practitioners (AANWP)

  • Functional Medicine Nurse Specialist | BC-FMNS
  • Functional Medicine Practitioner | BC-FMP
  • Functional Wellness Professional | BC-FWP
  • Christian Wellness Practitioner | BC-CWP (for students completing our optional Christian content)

Below are the coaching credentials that our graduates qualify for through the American Association of Natural Wellness Coaches (AANWC)

  • Functional Nurse Health Coach | BC-FNHC
  • Functional Health Coach | BC-FHC

This program has been peer-reviewed and is endorsed by The American Holistic Nurses Association

CEs earned from the Functional Nurse Academy meet CE eligibility requirements for the following American Holistic Nurses Association board certification titles:

  • HN-BC® (Holistic Nurse Board Certified)
  • HNB-BC® (Holistic Nurse Baccalaureate Board Certified)
  • AHN-BC® (Advanced Holistic Nurse Board Certified)
  • APHN-BC® (Advanced Practice Holistic Nurse Board Certified)
  • NC-BC® (Nurse Coach Board Certified)

What is included in enrollment?

Functional Nurse Academy is the leading and most comprehensive functional nursing program on the market for LPN, RN and NP. Enrollment includes the following:

  1. 90 Nursing Contact Hours of functional nursing education
  2. Multiple Board Certification Pathways in functional medicine and holistic nursing
  3. Functional Nurse Toolkit with business resources and practice-building tools
  4. Social Media & Marketing Kit with 9 months of content, brochures, and business card templates
  5. 40+ Advanced Trainings covering functional medicine and business strategy (available in FNA monthly mentorship library)
  6. Six Months of FNA’s Monthly Mentorship Program FREE, including live educational trainings and 60 minutes of live Q&A each month, all hosted by FNA Founder Melissa Schreibfeder, BSN, RN, BC-FMP, plus case studies and full access to the mentorship library.
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Ready to take the next step?

I’m so happy you’re interested in functional nursing! I’d love to connect with you at my next live informational + Q&A webinar, where you’ll learn all about functional nursing, how nurses across the country are launching their own functional wellness businesses, and how you can get started.

You’ll also have the opportunity to meet me live and get all of your questions answered!

Just click below to save your seat! I hope to see you there!

-Melissa Schreibfeder, BSN, RN, BC-FMP Founder & CEO, Functional Nurse Academy