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Coenzyme Q10 (CoQ10), also called Q10, ubiquinone, or vitamin Q10, is a natural substance your body makes to help cells produce energy and protect themselves from damage. It is found in foods like fatty fish and beef. Some people with cancer take CoQ10 supplements to support heart health during chemotherapy or reduce side effects, but its benefits and safety are still being studied.
QA, or Quality Assurance, is a process used in cancer care and clinical trials to regularly check that all activities meet required standards. It helps ensure that tests, treatments, and research follow laws and guidelines, aiming to keep care safe and effective. If you see QA mentioned in your medical information, it’s a way to confirm quality, not a diagnosis or treatment.
Qi is a concept from traditional Chinese medicine that means vital energy or life force, believed to keep a person’s spiritual, emotional, mental, and physical health in balance. Practices like Qigong (also spelled Qi Gong) use this idea to support well-being. In cancer care, Qigong is often used alongside medical treatment to help manage symptoms such as pain, stress, fatigue, sleep problems, and emotional challenges.
Qigong (also spelled Qi Gong) is a traditional Chinese practice involving gentle movements, breathing, and meditation. Many people with cancer use it alongside medical care to help manage symptoms like pain, stress, fatigue, sleep problems, and emotional challenges, aiming to improve overall quality of life during and after treatment. If a record says to see Qigong / Qi Gong, that preferred term should usually be checked as well. It may also appear under related names such as Qigong / Qi.
Qigong (also spelled Qi Gong) is a traditional Chinese practice combining slow body movements, controlled breathing, and meditation. It is often used alongside medical care to help people with cancer manage symptoms like pain, stress, fatigue, sleep problems, and emotional challenges, aiming to improve overall quality of life. If a record says to see Qigong / Qi Gong, that preferred term should usually be checked as well. It may also appear under related names such as Qigong / Qi Gong.
Qigong (also spelled Qi Gong) is a traditional Chinese practice that combines gentle movements, controlled breathing, and meditation. Many people with cancer use it alongside medical care to help manage symptoms like pain, stress, fatigue, sleep problems, and emotional challenges, aiming to improve overall quality of life during and after treatment.
Qinlock, also known as ripretinib, is a medication used to treat adults with advanced gastrointestinal stromal tumors (GIST) that have already been treated with other cancer drugs. It works by blocking certain proteins that help cancer cells grow. Qinlock is taken by mouth and is approved for patients whose cancer has not responded to at least three other treatments. Patients should discuss with their care team how Qinlock fits into their treatment plan.
Quadruple-Negative Breast Cancer (QNBC) is a type of breast cancer where tumor cells lack four common receptors: estrogen, progesterone, androgen, and HER2/neu protein. Knowing if breast cancer is QNBC helps doctors plan treatment. Patients should discuss what this means for their specific case with their care team, rather than relying on the term alone for diagnosis or treatment decisions.
QS21 is a plant-based substance studied as a saponin adjuvant, which means it may help vaccines work better by boosting the immune system’s response. It is not a treatment or diagnosis on its own. Patients and caregivers should ask their care team how QS21 relates to their specific situation rather than assuming its meaning from the word alone.
Quadramet is a drug containing a radioactive substance called samarium Sm 153. It collects in bones and releases radiation that may help relieve bone pain caused by cancer that has spread to the bones. It is given through a vein and is used to treat bone pain from cancers like prostate, breast, or lung cancer. Patients may see Quadramet also called samarium Sm 153-lexidronam pentasodium in medical reports or discussions.
Quadrantectomy is a type of breast-conserving surgery that removes a quarter of the breast tissue around a cancerous tumor, along with some nearby healthy tissue. It aims to treat breast cancer while preserving most of the breast. This surgery may also involve removing lymph nodes under the arm to check for cancer spread and is often followed by radiation therapy to reduce the chance of cancer returning.
A quadrivalent vaccine is a type of vaccine that protects against four different strains of a virus or microorganism. For example, the HPV quadrivalent vaccine, known as Gardasil, protects against four types of human papillomavirus (HPV), including those that cause most genital warts and several cancers. Although Gardasil is no longer available in the U.S., it was an important step in preventing HPV-related diseases.
Quadruple-Negative Breast Cancer (QNBC) is a type of breast cancer where the tumor cells lack four common receptors: estrogen, progesterone, androgen, and HER2/neu protein. Knowing if breast cancer is quadruple negative helps doctors plan treatment. Patients should discuss what this means for their specific case with their care team, rather than relying on the term alone for diagnosis or treatment decisions.
Quality Assurance (QA) is a process used in cancer care and clinical trials to regularly check that tests, treatments, and research meet required standards. It helps ensure that care is safe, effective, and follows laws and guidelines. QA is about preventing mistakes and making sure care is done right the first time, not a diagnosis or treatment itself.
Quality of life refers to how well a person enjoys and manages daily life, especially during cancer and its treatment. It includes physical comfort, emotional well-being, and the ability to do everyday activities. Many cancer treatments aim to maintain or improve quality of life by reducing symptoms and side effects. Patients and caregivers should discuss with their care team what quality of life means for their unique situation.
Quantum Body Reset is an alternative therapy involving device-based or frequency-oriented methods. It is discussed in some cancer communities for managing pain, inflammation, energy, immune support, scar healing, and detoxification. It is not a proven cancer treatment and should be used cautiously and only alongside conventional care under medical guidance.
Scalar Wave / Quantum Radionics is a complementary approach sometimes discussed in cancer care. People may explore it for symptom relief, nutrition support, immune or metabolic help, or to improve quality of life. It is not a proven cancer treatment and should never replace standard oncology care. Anyone interested should talk with their cancer care team to ensure safety and coordination with other treatments.
Quinone Oxidoreductase 1, also called Quinone Reductase, is an enzyme inside cells that helps make certain molecules less toxic. You might see this term in medical reports or educational materials. It’s important to understand it in context and ask your care team how it relates to your specific situation, rather than seeing it as a diagnosis or treatment on its own.
Quinone Reductase, also called Quinone Oxidoreductase 1, is an enzyme inside cells that helps make certain molecules less toxic. You might see this term in medical reports or educational materials. It’s important to understand it in context and ask your care team how it relates to your specific situation, rather than seeing it as a diagnosis or treatment on its own.
Benzoquinones are natural chemicals found in the defensive secretions of certain beetles, such as Ulomoides dermestoides. While related quinone compounds are important in biology and some cancer treatments, benzoquinones themselves are not standard cancer therapies. Patients may see these terms in research or alternative medicine discussions and should ask their care team how they relate to their care.
Quizartinib dihydrochloride, also known as Vanflyta, is a targeted cancer drug used to treat adults with newly diagnosed acute myeloid leukemia (AML) that has a specific mutation in the FLT3 gene. It works by blocking proteins that help cancer cells grow. This drug is available only through a special safety program called Vanflyta REMS. Patients should discuss with their care team how this medicine fits their treatment plan.