National Comprehensive Cancer Network (NCCN) Ovarian Symptom Index Questionnaire (OSI-18)
This questionnaire assesses how ovarian cancer symptoms affect your daily life, helping doctors track changes over time.
This tool helps monitor how ovarian cancer symptoms impact your quality of life and treatment response.
Key facts at a glance
- LOINC
- 70555-8
- Short code
- NATIONALCOMPREHENSIVECANCERNETWORKOVARIANSYMPTOMINDEXQUESTIONNAIRE18ITE
- Synonyms
- —
- Category
- coagulation
- Sample
- serum
- Container
- Red-top tube (SST)
- Units
- N/A
- Ref low
- 0.8
- Ref high
- 1.2
- Critical range
- 0.5 N/A – 5 N/A
- Fasting
- false
- Population
- adult
- Sex
- all
- Age range
- 18–65 years
- Method
- facit
- CPT
- 85610
- SNOMED
- 396252006
- Specimen volume
- 5 mL
- Stability
- Room temperature: 4h, Refrigerated: 24h, Frozen: 7d
- Hemolysis max
- 500
- Lipemia max
- 1000
- Icterus max
- 500
- TAT
- 4–24 hours
- Order
- routine
What This Questionnaire Measures
The NCCN OSI-18 evaluates 18 specific symptoms related to ovarian cancer, such as abdominal pain, bloating, fatigue, and changes in bowel habits. Each symptom is rated on a scale to measure severity and frequency, helping doctors understand your experience and adjust care as needed.
How It’s Used in Care
Doctors use this questionnaire regularly to track how symptoms progress or improve with treatment. It’s not a blood test but a way to gather detailed information about your symptoms to guide treatment decisions.
Who Might Use It
Healthcare providers use this questionnaire for patients with ovarian cancer or those at high risk. It’s especially useful for monitoring treatment side effects and symptom management during and after treatment.
What to Expect When Completing It
You’ll answer questions about how often and how severely you experience symptoms like bloating, pain, or fatigue. The answers help doctors compare your current symptoms to past ones to identify trends or improvements.
Reference range
INR: 0.8-1.2 (warfarin: 2.0-3.0)N/A
Inform your healthcare provider if you are taking blood thinners. No special preparation required.
Clinical interpretation
How abnormal results are interpreted and what conditions they suggest.
This questionnaire provides critical insights into how ovarian cancer symptoms affect your daily life. It helps doctors assess treatment effectiveness, adjust medications, and plan interventions to improve your well-being. Early detection of worsening symptoms can lead to timely medical adjustments, potentially improving outcomes.
Frequently asked questions
Why do doctors use this questionnaire?
Is this questionnaire the same as a blood test?
How often should I complete this questionnaire?
Sources
- 1
- 2Lab Tests OnlineSource
- 3
Click any link to access the full source. PubMed Central (PMC) links provide free full-text access.
This information is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment.
This content is for general informational and educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always seek the guidance of a qualified healthcare provider with any questions you have about a medical condition, and never disregard professional medical advice or delay seeking it because of something you read here.
If you think you may have a medical emergency, call your local emergency number or go to the nearest emergency department immediately.
Medically reviewed by WellAlly Editorial Team Last reviewed August 17, 2026. · Read our editorial policy