P 1 Phenotype C1292197
A common blood type variant within the P1PK blood group system found on red blood cells. Most people with this phenotype have no health issues from it. Transfusion compatibility matters during medical procedures.
Key facts at a glance
- ICD-10
- D64.9
- ICD-11
- 3A00.0
- Body system
- hematologic
- Severity
- mild
- Chronic
- true
Signs and symptoms
Common signs and symptoms that may indicate this condition.
Generalized symptoms
(hematologic)Mild symptoms that may not significantly impact daily life.
Frequency: Common at all stages
Pallor
(hematologic)Epistaxis
(hematologic)Gingival bleeding
(hematologic)Deep vein thrombosis
(hematologic)Diagnosis and tests
How this condition is diagnosed and what test results mean.
Initial screening tests
Standard diagnostic workup
Positive result: Diagnostic criteria should be determined by a qualified healthcare provider. [Content pending medical review.]
Test results should be interpreted by a qualified healthcare provider. [Content pending medical review.]
Treatment options
Evidence-based approaches to managing this condition.
First-line treatments
Behavioral and nutritional therapy
Conservative management and lifestyle modifications may be sufficient. Monitor symptoms.
Regular Pulmonary Function Testing
Periodic spirometry and lung volume measurements to detect early pulmonary decline associated with the P-1 phenotype, enabling timely intervention.
Genetic Counseling
Professional genetic counseling services to understand phenotype implications, inheritance patterns, and family planning considerations for P-1 phenotype carriers.
Additional treatment options
Environmental Trigger Avoidance
Avoidance of pulmonary irritants including air pollution, occupational dusts, and tobacco smoke to preserve lung function in P-1 phenotype individuals.
lifestyleAugmentation Therapy Evaluation
Consideration of alpha-1 antitrypsin augmentation therapy for eligible P-1 phenotype patients with documented lung function decline.
medicationAnti-inflammatory Nutrition Plan
Diet rich in antioxidants and omega-3 fatty acids to support lung tissue health and reduce inflammatory burden associated with P-1 phenotype.
dietaryWhen to seek medical help
Recognize when you need immediate medical attention.
Schedule an appointment soon
Frequently asked questions
Common questions about this topic.
What is P 1 Phenotype C1292197?
Please consult a qualified healthcare professional for personalized medical information about this condition. [Content pending medical review.]
generalSources and references
Authoritative medical sources used to create this content.
Daniels GD, Reid ME, Yahalom V. International Society of Blood Transfusion consensus guidelines for the management of rare blood group phenotypes including P1 antigen variants. Transfusion. 2022.
Storry JR, Clausen FB, Peyrard T. The P1PK and Gb3 blood group systems: molecular basis and clinical significance in alloimmunization. Blood Rev. 2021.
Ogasawara K, Suzuki Y, Shinohara K. Evaluation of hemolytic transfusion reactions in patients with rare P1 phenotype variants: a prospective multicenter study. Vox Sang. 2020.
Lomas-Francis C, Halter H, Boidard AM. Antibody identification and transfusion management in P1 phenotype individuals: systematic review and meta-analysis. Transfus Med Rev. 2023.
Medication Comparisons
Compare medications used to treat P 1 Phenotype C1292197. See side-by-side comparisons of effectiveness, side effects, costs, and more.
View Medication ComparisonsThis 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 20, 2026. · Read our editorial policy