- CLT-LANA is the Certified Lymphedema Therapist credential issued by the Lymphology Association of North America.
- The exam has 130 multiple-choice questions, 110 scored plus 20 unidentified research items, in 150 minutes.
- Passing requires a scaled score of 700 out of 1000, not a flat 70% raw score.
- Domains 2 and 4 each carry 30% of the exam, making them your highest-value study areas.
What CLT-LANA Actually Is
CLT-LANA is the credential designation for the LANA Certified Lymphedema Therapist. It signals that a licensed or otherwise qualified clinician has completed specialized training in complete decongestive therapy (CDT) and has passed a standardized, closed-book examination covering the science and clinical management of lymphedema and related disorders.
The letters "CLT" stand for Certified Lymphedema Therapist, and "LANA" identifies the certifying body. That suffix matters. It tells employers, referring physicians, and patients exactly which organization stands behind the credential and which exam you passed. If you are searching for the exact wording behind the abbreviation, our explainers on what CLT-LANA stands for and the meaning of CLT-LANA go deeper on the terminology, and the broader CLT-LANA certification overview ties the pieces together.
The credential is built around one clinical population: people living with lymphedema and the disorders that mimic or complicate it. A candidate is not tested on general rehabilitation. The exam asks whether you understand the lymphatic system deeply enough to evaluate a swollen limb, distinguish lymphedema from venous, arterial, or fat-related conditions, and select a safe, effective management plan.
Who Issues the Credential
The Lymphology Association of North America (LANA) is the certifying organization. LANA sets the eligibility rules, defines the examination content, and maintains the certification once you hold it. Prometric supports exam administration, and the delivery options include test-center appointments and approved remote-proctored sessions. LANA's candidate booklet uses IQT scheduling terminology when it describes how candidates book their seats, so expect to see that language when you register.
Who Can Sit for the Exam
LANA does not let anyone with a textbook and a registration fee take the exam. Candidates must satisfy three pillars of eligibility, and each one has a practical implication for how you plan your path.
The Three Eligibility Pillars
You need all three before you can be approved to test.
- Professional standing: an accepted professional license, registration, or equivalent qualifying credential.
- CDT training: at least 135 hours of qualifying complete decongestive therapy training that includes an in-person skills assessment.
- Science coursework: 12 college science credit hours, with specified exemptions for certain professional licensures.
One policy change deserves attention. LANA's April 2026 policy permits remote theoretical instruction but still requires on-site practical laboratory instruction. In plain terms, you may complete the lecture portion of a CDT course online, but the hands-on skills, such as manual lymph drainage technique and bandaging, must be taught and assessed in person. When choosing a course, confirm that the program satisfies both parts of this rule. Our CLT-LANA requirements guide walks through qualification pathways in more detail, and the CLT-LANA training overview explains how to evaluate programs.
How the Exam Is Built
The CLT-LANA exam is a computer-based, English-language, closed-book test. Here is the structure at a glance.
| Feature | CLT-LANA Detail |
|---|---|
| Total questions | 130 |
| Scored questions | 110 |
| Unidentified research items | 20 |
| Question type | Four-option, single-answer multiple choice |
| Testing time | 150 minutes |
| Passing standard | Scaled score of 700 out of 1000 |
| Reference materials | None (closed book) |
| Delivery | Test center or approved remote proctoring |
What the 20 Research Items Mean for You
Twenty of the 130 questions are unidentified research items. They do not count toward your score, but you cannot tell which ones they are. The practical lesson: never decide a question is "probably unscored" and rush it. Treat every item as if it counts. A tricky, unfamiliar question is not evidence that it is a research item.
Pacing Across 150 Minutes
With 130 questions in 150 minutes, you have a little over a minute per item. That sounds comfortable until you hit the clinical scenario questions that require you to parse a patient description, identify the underlying condition, and choose among four plausible management options. Practice reading stems efficiently and eliminating distractors. Because each question has a single best answer among four options, the discipline of ruling out clearly unsafe or contraindicated choices pays off quickly in this field.
The Four Content Domains
The exam blueprint divides the content into four domains. Two of them carry half again as much weight as the others combined in terms of preparation priority, so understanding the weighting should shape how you allocate study hours. For a full breakdown, see our complete guide to the four CLT-LANA content areas.
| Domain | Weight |
|---|---|
| Domain 1: Anatomy and Physiology | 25% |
| Domain 2: Lymphedema, Vascular, and Related Disorders | 30% |
| Domain 3: Patient Evaluation and Treatment Planning | 15% |
| Domain 4: Management of Lymphedema and Related Disorders | 30% |
Domain 1: Anatomy and Physiology (25%)
This is the foundation. You must understand how the lymphatic system functions normally before you can recognize how it fails.
- Lymphatic vessel structure, from initial lymphatics to collectors and trunks
- Lymph formation and transport, including the role of the lymphangion
- Lymph node distribution and drainage territories
- Interaction between the lymphatic, venous, and arterial systems
- Fluid dynamics at the capillary level and how filtration and reabsorption relate to edema
Domain 2: Lymphedema, Vascular, and Related Disorders (30%)
One of the two heaviest domains. This is where differential diagnosis lives, and the exam rewards candidates who can tell conditions apart.
- Primary versus secondary lymphedema, including causes and presentation
- Fat disorders such as lipedema and how they differ from lymphedema
- Venous disease, including chronic venous insufficiency
- Arteriovenous and arterial conditions and their implications for compression
- Complications and comorbidities that change how a patient can be treated
Domain 3: Patient Evaluation and Treatment Planning (15%)
The smallest domain, but one that links diagnosis to action.
- History taking and clinical assessment of the swollen limb
- Measurement and documentation approaches
- Recognizing red flags and contraindications that require referral
- Building an individualized plan with realistic goals
Domain 4: Management of Lymphedema and Related Disorders (30%)
The other heavyweight. This is the applied heart of complete decongestive therapy.
- The phases and components of CDT, including skin care, manual lymph drainage, compression, and exercise
- Compression bandaging and garment selection principles
- Home program design and patient self-management education
- Adapting management when a related vascular or fat disorder is present
- Knowing when compression or manual techniques are unsafe
Scoring, Retakes, and Attempt Limits
The passing standard is a scaled score of 700 out of 1000. This is not the same as answering 70% of questions correctly. Scaled scoring adjusts for differences in difficulty between exam forms, so the raw number of correct answers needed can vary slightly. If you want to understand how to interpret that number, read our dedicated guide to the CLT-LANA passing score, and for context on how candidates fare overall, see what the pass-rate data shows.
Retake rules are firm and worth knowing before your first attempt:
- A six-month wait is required before a retake.
- A maximum of three attempts is allowed within 24 months.
- After three failures, an additional 12-month wait applies.
Because a failed attempt costs you at least half a year and another exam fee, the smart strategy is to treat your first attempt as the real one. Our piece on how hard the CLT-LANA exam is helps you calibrate your readiness honestly.
Fees and Renewal
The exam fee is $430, increasing to $480 on April 1, 2027. If you are planning your timeline, that date is a practical deadline worth noting: registering before the increase saves you $50.
The credential is not permanent. Certification renews every six years. To renew, you can complete 24 contact hours of qualifying education or other approved activities, or choose re-examination. You must also hold a current qualifying professional credential and pay the renewal fee. Recertification costs $200, increasing to $250 on January 1, 2027.
| Item | Current | Scheduled Increase |
|---|---|---|
| Exam fee | $430 | $480 on April 1, 2027 |
| Recertification fee | $200 | $250 on January 1, 2027 |
| Renewal cycle | Every six years (24 contact hours or re-examination) | |
Remember that exam and renewal fees are only part of the picture. Your CDT course tuition and science coursework also factor in. For the full financial picture, see our CLT-LANA certification cost breakdown, and when you are weighing whether the investment pays off, our ROI analysis can help.
Where CLT-LANA Therapists Work
Certified lymphedema therapists are typically licensed clinicians, such as physical therapists, occupational therapists, nurses, and other qualifying professionals, who add lymphedema expertise to their existing practice. Settings where this skill set is in demand include:
- Outpatient rehabilitation clinics that run dedicated lymphedema programs
- Hospital-based oncology and cancer rehabilitation services, where secondary lymphedema after surgery or radiation is common
- Wound care and vascular centers, where venous disease and edema overlap
- Home health and specialty private practices focused on chronic edema management
The credential is attractive to employers because it provides a recognizable standard for a niche clinical skill. Therapists with CLT-LANA often become the in-house referral point for complex swelling cases. To explore positions, see our overview of CLT-LANA jobs, and for compensation context, our salary guide examines the earnings picture qualitatively.
Sequencing Your Preparation
Rather than a generic study plan, the most useful approach is one shaped by the blueprint. Build in the order that the content builds on itself: anatomy first, differential diagnosis second, management third, with evaluation woven through. The timeline below assumes you have already completed your CDT course and are consolidating for the exam.
Domain 1 Foundation
- Rebuild lymphatic anatomy and physiology from the ground up
- Master drainage territories and fluid dynamics
- Create your own diagrams from memory
Domain 2 Differential Diagnosis
- Build a comparison chart: lymphedema, lipedema, venous disease, arterial disease
- Memorize key distinguishing features for each
- Practice scenario questions on identifying the condition
Domain 4 Management
- Review each CDT component and its safety limits
- Drill contraindications and when to modify or withhold treatment
- Link each condition from Domain 2 to its management implications
Domain 3 and Full Review
- Cover evaluation, measurement, and treatment planning
- Take a full-length timed practice exam
- Target weak spots, favoring Domains 2 and 4
Key Takeaway
Schedule your heaviest study blocks for Domains 2 and 4, but build Domain 1 first. Anatomy knowledge makes the clinical reasoning in the two largest domains far easier to retain. When you are ready to test yourself, work through realistic questions on our CLT-LANA practice test, and use the CLT-LANA study guide and one-page cheat sheet for final review.
Scheduling matters too. Check the testing windows and deadlines in our CLT-LANA exam dates guide so your study plan ends near your exam date rather than months before it, which would let knowledge fade. When you are ready for more practice, our full-length CLT-LANA practice exams mirror the four-option, single-answer style you will face.
Frequently Asked Questions
CLT-LANA stands for Certified Lymphedema Therapist credentialed through the Lymphology Association of North America. It is a certification for clinicians who have completed qualifying complete decongestive therapy training and passed the LANA examination.
The exam contains 130 four-option, single-answer multiple-choice questions. Of these, 110 are scored and 20 are unidentified research items that do not count toward your result. You have 150 minutes to finish, and the exam is closed book.
You need a scaled score of 700 out of 1000. This is a scaled standard rather than a simple 70% raw accuracy requirement, so the exact number of correct answers needed can vary between exam forms.
Domain 2 (Lymphedema, Vascular, and Related Disorders) and Domain 4 (Management of Lymphedema and Related Disorders) each account for 30% of the exam. Domain 1 (Anatomy and Physiology) is 25%, and Domain 3 (Patient Evaluation and Treatment Planning) is 15%.
Certification renews every six years. You can renew by completing 24 contact hours of qualifying education or other approved activities, or by re-examination, while maintaining a current qualifying professional credential and paying the renewal fee.
Understanding what CLT-LANA is, and exactly how the exam is structured, is the first step toward earning it. For additional reading, explore our guides on what CLT-LANA certification is and what a CLT-LANA does, then move into focused practice when you are ready.