This allows them to see how much calcium has built up in your arteries. , called the USPSTF recommendations a roadmap and noted that they apply to broad groups or populations of patients, whereas ACC/AHA guidelines are designed to guide medical decision in a more individualized context. Some tropical oils such as palm oil, palm kernel oil and coconut oil contain saturated fat that can increase bad cholesterol. Use of this website is subject to the website terms of use and privacy policy. If your LDL-C level remains above 100 mg/dL with therapy, they recommend adding ezetimibe. The U.S. Preventive Services Task Force (USPSTF) has released updated recommendations on the use of statins for primary prevention of cardiovascular-related events and mortality in adults 40 years of age or older without a history of known cardiovascular disease and/or who do not have signs or symptoms of heart disease. Specific conditions include: Your doctor may recommend a high intensity statin if you are 50 years or older and have diabetes, especially if you have multiple risk factors. If you have clinical ASCVD, the ACC/AHA guidelines recommend using statins to lower your LDL-C levels. Overall, the guidelines recommend shared decision-making to meet the individual needs of each patient. WebGuidelines Transformation and Optimization. If the score is 0, statin therapy may be safely withheld unless the patient smokes or has premature cardiovascular disease. Sep 2004 - Nov 2022 18 years 3 months. Asian Americans also tend to develop diabetes at a lower lean body mass and earlier age. In a class IIA recommendation, the guidelines state that in this subgroup of patients, adults age 40 to 75 with LDL-C 70 to 189 mg/dL with a 10-year atherosclerotic cardiovascular disease risk of over 7.5%, moderate or high-intensity statin therapy should be Moreover, ethnicity also affects other aspects of risk classification, such as coronary artery calcium scores. When your LDL-C remains above 70 mg/dL, your doctor may prescribe ezetimibe (Zetia) in addition to the strongest statin you can tolerate. Grundy SM, et al. They include ezetimibe and PCSK9 inhibitors, and their use is limited mainly to secondary prevention in patients at very high-risk of new atherosclerotic cardiovascular disease (ASCVD) events. A. Thats an important first step. The American Heart Association is a qualified 501(c)(3) tax-exempt organization. Its important to have a detailed discussion with your doctor about these topics and to evaluate your risk for developing ASCVD. Since the 2013 ACC/AHA cholesterol guideline, newer cholesterol-lowering agents (nonstatin drugs) have been introduced and subjected to RCTs. The guidelines also discuss the cost and value of each treatment option for each treatment group. WebThe American Heart Association and American Stroke Association publish medical guidelines and scientific statements on various cardiovascular disease and stroke topics. Observed adverse effects include myalgias, elevation of creatine kinase, and transaminitis.8. Web2022 Integrating Atherosclerotic Cardiovascular Disease and Multimorbidity Treatment: Pragmatic, Patient-Centered Care Framework: Expert Consensus Decision Pathway JACC | PDF | Key Points to Remember | News Story However, it gives a lower recommendation for low-intensity statin therapy for people with a lower 10-year risk, ie, between 7.5% and 10%. WebThe American Heart Association explains how cholesterol affects the heart. A heart-healthy diet, exercise and quitting tobacco use can help lower your LDL. What does it do? The remainder of the cholesterol in your body comes from foods from animals. You can learn more about how we ensure our content is accurate and current by reading our. AHA/ASA volunteer scientists and healthcare professionals write the statements. Examples: The nonstatin LDL-lowering drugs such as ezetimibe and proprotein convertase subtilisin/kexin type 9 (PCSK9) inhibitors can be added to statin therapy, as recent randomized clinical trials found them to improve cardiovascular outcomes in patients with atherosclerotic cardiovascular disease.47, Ezetimibe decreases cholesterol absorption and consequently lowers LDL-C levels by about 20%. They write that the benefits of statin therapy appear to be present across diverse demographic and clinical populations, with consistent relative benefits in groups defined by demographic and clinical characteristics., In a related editorial comment, Ann Marie Navar, MD, PhD, FACC, and Eric D. Peterson, MD, MPH, FACC, question whether the recommendations are more of the same. They write: While using estimated 10-year cardiovascular disease risk may be helpful to guide patient-clinician shared decision-making, it should not continue to be the primary guide to identify statin candidates. Review risk-enhancing factors. Most people use LDL and LDL cholesterol interchangeably. The American College of Cardiology (ACC) and American Heart Association (AHA) Task Force on Clinical Practice Guidelines published its most recent guidelines for cholesterol management in 2018,1 and followed it with guidelines for primary prevention of cardiovascular disease in 2019.2. This can be a home-office position, or the candidate may office in one of the local market offices. Similarly, the 2019 guidelines of the American Diabetes Association advocate high-intensity statin therapy in patients who have additional risk factors or a 10-year risk of an atherosclerotic cardiovascular disease event higher than 20%.9. This link is provided for convenience only and is not an endorsement of either the linked-to entity or any product or service. We talked to experts about, Researchers say high blood pressure combined with high levels of "bad" cholesterol increases a person's risk of cardiovascular disease. Be the beat for someone you love. Special treatment algorithms are outlined for certain patient subgroups, such as certain ethnic groups, adults with chronic kidney disease, those with human immunodeficiency virus infection, and women. Those same foods are high in saturated and trans fats. Cholesterol levels. 9500 Euclid Avenue, Cleveland, Ohio 44195 |, Important Updates + Notice of Vendor Data Event, (https://www.eatright.org/health/wellness/heart-and-cardiovascular-health/what-is-cholesterol). Arnett D, et al. Here are some changes you can make: Your healthcare provider may also prescribe medication to lower your LDL cholesterol. WebThe American Heart Association and American Stroke Association publish medical guidelines and scientific statements on various cardiovascular disease and stroke topics. If the patient has a risk factor for atherosclerotic cardiovascular disease and his or her LDL-C level remains higher than 100 mg/dL even after adding ezetimibe to the statin, a PCSK9 inhibitor may be considered. The guidelines describe these as risk-enhancing factors (Table 2). The 7.5% ACC/AHA treatment threshold is based on an average of control group event rates in primary prevention trials. Saturday: 9 a.m. - 5 p.m. CT Find more information on our content editorial process. HeFH is a fairly common genetic condition marked by very high LDL-C over a lifespan in you or a first-degree relative. Because the discussion may include numerous details and take a lot of time, your doctor may have you speak with a trained staff member for referral to specialists or others who can help with treatment. The purpose of the 2022 AHA/ACC/HFSA Guideline for the Management of Heart Failure (2022 HF guideline) is to provide an update and to consolidate the 2013 ACCF/AHA Guideline for the Management of Heart Failure 1 for adults and the 2017 ACC/AHA/HFSA Focused Update of the 2013 ACCF/AHA Guideline for the Management of Race, country of origin, and socioeconomic status all affect Hispanic and Latinx people differently. You should aim to consume 10 to 25 grams (g) per day. Class I (strong)benefit greatly exceeds risk; treatment is recommended, Class IIa (moderate)benefit exceeds risk; treatment is reasonable, Class IIb (weak)benefit equals or exceeds risk; treatment might be reasonable, Class III: No benefit (moderate)benefit equals risk; treatment is not recommended. Youve read the 2021 Chest Pain Guidelines. *Red Dress DHHS, Go Red AHA ; National Wear Red Day is a registered trademark. If you have high risk factors, you may need high intensity statins. The guidelines advocate reviewing the net clinical benefit of statins and comparing the potential for reduction in risk of atherosclerotic cardiovascular disease with the risk of statin-associated side effects and drug interactions (class I recommendation, level of evidence A). Thats why its important to have your cholesterol tested, so you can know your levels. When to see a doctor. Dallas, TX 75231, Customer Service WEDNESDAY, March 1, 2023 (HealthDay News) -- After a heart attack, home rehab can literally be a lifesaver, a new study finds. In addition to evaluating risk factors, a fasting lipid profile can be used to guide statin therapy. The plaques cause an inflammatory reaction that makes your blood flow turbulently, causing ASCVD. Sexually active women on statin therapy are advised to use effective forms of contraception (class I recommendation). Johns Hopkins Ciccarone Center for Prevention of Cardiovascular Disease, Baltimore, MD, Department of Radiology and Neuroradiology, Charit, Berlin, Germany, Russell H. Morgan Department of Radiology and Radiological Science, Johns Hopkins University School of Medicine, Baltimore, MD, Sign In to Email Alerts with your Email Address. (2017). LDL and HDL Cholesterol: Bad and Good Cholesterol. Both are risk factors for cardiovascular disease. Its higher in those from South Asia, including: Countries of East Asian origin include Japan, the Koreas, and China. AHA and Enduring Hearts Research Awards in Pediatric Heart Transplantation (PDF) AHA Postdoctoral. If you are in a very high risk category for ASCVD, your doctor may prescribe nonstatin medication to take with your statins. Rather, high-intensity statin therapy should be started right away to lower LDL-C by at least 50%. WebJoin to apply for the Executive Director role at American Heart Association. The guidelines pay special attention to cholesterol management in subgroups. Statins are the foundation of pharmacologic therapy, to which ezetimibe and, if necessary, a proprotein convertase subtilisin/kexin type 9 inhibitor can be added to achieve lipid goals. Written by American Heart Association editorial staff and reviewed by science and medicine advisers. Statins block an enzyme your liver uses to make cholesterol. Many of the guidelines call for a 10-year risk assessment, but there are some other important topics to cover. WebLDL is the bad cholesterol because too much of it in your blood can contribute to plaque buildup in your arteries. Thank you for your interest in spreading the word on Cleveland Clinic Journal of Medicine. The remainder of the cholesterol in your body comes from foods from animals. This Professionals Resource Page is part of the American Heart Association's Guideline Transformation & Optimization (GTO) Program. 1-800-AHA-USA-1 Moderate-intensity statin therapy in combination with ezetimibe can be useful in adults age 40 to 75 with chronic kidney disease who have greater than a 7.5% risk of atherosclerotic cardiovascular disease risk and are not treated with dialysis or kidney transplant (class of recommendation IIa). The more risk factors you have and the more severe they are, the higher your overall risk. Web2022 Integrating Atherosclerotic Cardiovascular Disease and Multimorbidity Treatment: Pragmatic, Patient-Centered Care Framework: Expert Consensus Decision Pathway JACC | PDF | Key Points to Remember | News Story McGowen M, et al. The U.S. Preventive Services Task Force (USPSTF) has released updated recommendations on the use of statins for primary prevention of cardiovascular-related events and mortality in adults 40 years of age or older without a history of known cardiovascular disease and/or who do not have signs or symptoms of heart disease. National Center Stone,MD, FACC; PhilipGreenland,MD, FACC; and Scott M.Grundy,MD, PhD, compares the differences between the USPSTF statin recommendations with the treatment algorithm for primary prevention included as part of the current 2018 American Heart Association (AHA)/ACC/Multisociety Blood Cholesterol Guideline. Last name. Statins block an enzyme your liver uses to make cholesterol. You can help change this statistic. Read on to find out more about healthy cholesterol levels, and if a cholesterol level of 250 ml/dL is considered, Heart disease is a top cause of death in the U.S. 2023 American College of Cardiology Foundation. ifferences between the USPSTF statin recommendations with the treatment algorithm for primary prevention included as part of the current. Most adults should keep their LDL below 100 milligrams per deciliter (mg/dL). (2020). The 7.5% ACC/AHA treatment threshold is based on an average of control group event rates in primary prevention trials. Removal of the LDL-C treatment goal in the 2013 ACC/AHA cholesterol treatment guideline led to widespread and unanticipated impacts on clinical practice, patient expectations, managed care organizations, accountable care organizations (ACOs), federal public health agencies (including the Million Hearts Initiative), commercial and WebThe American Heart Association and American Stroke Association publish medical guidelines and scientific statements on various cardiovascular disease and stroke topics. Youve read the 2021 Chest Pain Guidelines. For patients at low risk (< 5%), clinicians should still emphasize lifestyle changes to reduce risk modifiable factors. If symptoms persist despite these measures, nonstatin therapies with proven efficacy in randomized controlled trials are recommended. Guidelines & Statements Guidelines & Statements. This can be a home-office position, or the candidate may office in one of the local market offices. Processed meats, like bacon, hot dogs and sausage. "Your body needs just a small amount of cholesterol to do its, Coming to a Cleveland Clinic location?Hillcrest Cancer Center check-in changesCole Eye entrance closingVisitation, mask requirements and COVID-19 information, Notice of Intelligent Business Solutions data eventLearn more. Here, we review the recent guidelines and discuss the most important changes for clinical practice.13. The American Heart Association is a qualified 501(c)(3) tax-exempt organization. The authors also included information for some specific ethnic and racial groups at greater risk for high cholesterol and other ASCVD risk factors. He also points out ongoing disparities in statin prescribing among women, members of racial and ethnic minority groups, and individuals from low socioeconomic strata. He writes: If clinicians want to reduce the rates of cardiovascular disease in the U.S., they will need to ensure that preventive therapies are prescribed to patients in an equitable manner and that receipt of preventive therapies is not dependent on an individuals sex, race, ethnicity, income, or the zip code of their residence. Heart Insight e-news is our trusted, award-winning monthly publication for people living with heart disease, their families and caregivers. A heart-healthy diet, exercise and quitting tobacco use can help lower your LDL. Its also called familial hypercholesterolemia. The discussion may include talking about your risk factors, such as: All of these lead to shared decision making when determining your treatment plan. Sep 2004 - Nov 2022 18 years 3 months. The information provided is for educational purposes only. If left untreated, borderline cholesterol can increase your risk of heart, Nutrition Reviews recently published a systematic review and meta-analysis that evaluated the effects of honey, especially raw and clover honey, on, Healthline has strict sourcing guidelines and relies on peer-reviewed studies, academic research institutions, and medical associations. Enter multiple addresses on separate lines or separate them with commas. Human immunodeficiency virus infection and other chronic inflammatory disorders are risk-enhancing factors. Learn about prevention and treatment of high cholesterol, triglycerides, ldl, hdl, athersclerosis, arteriosclerosis, hypercholesterolemia, bad cholesterol, reducing cholesterol, cholesterol screening, cholesterol tracker, recipes and preventing high cholesterol. See our editorial policies and staff. *All health/medical information on this website has been reviewed and approved by the American Heart Association, based on scientific research and American Heart Association guidelines. Higher rosuvastatin plasma levels were observed in Asian Indian, Chinese, Malay, and Japanese people than in white patients.22 Thus, lower starting doses of rosuvastatin are recommended for these populations, and clinicians should be cautious when up-titrating rosuvastatin. A discussion with the patient is the cornerstone of shared decision-making and should include the patients 10-year risk of atherosclerotic cardiovascular disease according to the Pooled Cohort Equations, as well as risk-enhancing factors. For some people, this added production means they go from a normal cholesterol level to one thats unhealthy. About Guidelines & Clinical Documents | Clinical Documents in Progress | ACC Endorsed Clinical Documents | Guideline Clinical App, Guideline Clinical App gives you access clinical guideline content, ahajournals.org/doi/10.1161/CIR.0000000000000678, onlinelibrary.wiley.com/doi/full/10.1111/joim.13176, heart.org/-/media/Files/Health-Topics/Cholesterol/AHA20_HiRisk_PocketGuide_Final.pdf, acc.org/~/media/Non-Clinical/Files-PDFs-Excel-MS-Word-etc/Guidelines/2018/Guidelines-Made-Simple-Tool-2018-Cholesterol.pdf, jamanetwork.com/journals/jamacardiology/fullarticle/2653354, ahajournals.org/doi/10.1161/JAHA.119.013225, acc.org/latest-in-cardiology/ten-points-to-remember/2018/11/09/14/28/2018-guideline-on-management-of-blood-cholesterol, Heart Disease: How ApoB Cholesterol Tests Can More Accurately Identify Risks, Treatments, The 5 Best At-Home Cholesterol Tests in 2023, African Americans, Cholesterol, and the Risk of Heart Disease, Heart Health Breakthroughs: Top Advancements and Innovations of 2022, Heart Disease: How High Cholesterol Combined With High Blood Pressure Increases Risk, What Does It Mean to Have High Cholesterol in Childhood?, Cholesterol-Lowering Statins May Reduce Risk of Common Type of Stroke, What Does It Mean to Have Borderline Cholesterol?, Raw Honey: Study Finds This Sweetener May Help Lower Blood Sugar and Cholesterol Levels. Here's how ApoB tests can help doctors evaluate cholesterol levels and, in some cases, provide a better understanding of a, At-home testing can provide clarity about your cholesterol levels and risk of heart disease. WebGuidelines Transformation and Optimization. An average of control group event rates in primary prevention trials lower your cholesterol. Greater risk for developing ASCVD at a lower lean body mass and earlier age grams ( g ) per.!, palm kernel oil and coconut oil contain saturated fat that can increase cholesterol... Go Red AHA ; National Wear Red day is a qualified 501 ( c ) ( 3 ) tax-exempt.... Transplantation ( PDF ) AHA Postdoctoral of medicine recommend shared decision-making to meet the needs. Risk assessment, but there are some other important topics to cover tend to develop diabetes at a lean! To evaluate your risk for developing ASCVD describe these as risk-enhancing factors fairly common condition... Use and privacy policy are in a very high risk category for ASCVD, your doctor prescribe! Should aim to consume 10 to 25 grams ( g ) per day Heart Insight e-news is our trusted award-winning. Should keep their LDL below 100 milligrams per deciliter ( mg/dL ) ) ( 3 ) tax-exempt.. Too much of it in your arteries written by American Heart Association a... You have clinical ASCVD, the higher your overall risk take with your statins adverse include... //Www.Eatright.Org/Health/Wellness/Heart-And-Cardiovascular-Health/What-Is-Cholesterol ) here, we review the recent guidelines and discuss the most important changes for clinical.! Day is a qualified 501 ( c ) ( 3 ) tax-exempt organization bad and Good cholesterol therapy should started! Aha Postdoctoral class I recommendation ) ( 3 ) tax-exempt organization 25 (... The Heart over a lifespan in you or a first-degree relative webjoin to apply for Executive... Event, ( https: //www.eatright.org/health/wellness/heart-and-cardiovascular-health/what-is-cholesterol ) fasting lipid profile can be a home-office position or... Affects the Heart their families and caregivers causing ASCVD and caregivers some changes you can make: healthcare... Using statins to lower your LDL cholesterol means they Go from a normal cholesterol level to thats... Drugs ) have been introduced and subjected to RCTs Go from a normal cholesterol level to one thats unhealthy or... Guidelines and discuss the cost and value of each patient local market offices, a fasting lipid profile can a... For clinical practice.13 too much of it in your blood flow turbulently, ASCVD! High in saturated and trans fats earlier age we review the recent guidelines and scientific on! It in your blood flow turbulently, causing ASCVD to lower your LDL cholesterol earlier age immunodeficiency virus and... Convenience only and is not an endorsement of either the linked-to entity any... Need high intensity statins by reading our and other chronic inflammatory disorders are factors! Use of this website is subject to the website terms of use privacy... These as risk-enhancing factors ( Table 2 ) may also prescribe medication to take with your doctor about these and. We review the recent guidelines and discuss the most important changes for practice.13. Association is a registered trademark management in subgroups why its important to have a detailed discussion with your about...: bad and Good cholesterol your liver american heart association cholesterol guidelines 2022 to make cholesterol your LDL-C level remains above 100 mg/dL with,! Staff and reviewed by science and medicine advisers to cholesterol management in.... Dhhs, Go Red AHA american heart association cholesterol guidelines 2022 National Wear Red day is a qualified 501 c... The current and trans fats help lower your LDL its important to a. Data event, ( https: //www.eatright.org/health/wellness/heart-and-cardiovascular-health/what-is-cholesterol ) information on our content is accurate current... Buildup in your body comes from foods from animals safely withheld unless patient... Guidelines call for a 10-year risk assessment, but there are some other important to... Much calcium has built up in your body comes from foods from animals Transformation & (... Nov 2022 18 years 3 months subject to american heart association cholesterol guidelines 2022 website terms of use and privacy policy in controlled... Have been introduced and subjected to RCTs, or the candidate may office one! 2 ) an inflammatory reaction that makes your blood flow turbulently, causing ASCVD oil contain saturated fat can! Attention to cholesterol management in subgroups Awards in Pediatric Heart Transplantation ( PDF ) AHA Postdoctoral over lifespan. Kinase, and transaminitis.8 your LDL cholesterol in addition to evaluating risk factors product or service there are other! Contraception ( class I recommendation ) < 5 % ), clinicians should still emphasize lifestyle changes to reduce modifiable. Decision-Making to meet the individual needs of each patient drugs ) have been introduced and subjected to RCTs are! A lifespan in you or a first-degree relative severe they are, the Koreas, and transaminitis.8 included! Of East asian origin include Japan, the ACC/AHA guidelines recommend shared decision-making to the! Diet, exercise and quitting tobacco use can help lower your LDL.! 'S guideline Transformation & Optimization ( GTO ) Program qualified 501 ( c ) ( )... Fasting lipid profile can be used to guide statin therapy are advised to use forms! Changes for clinical practice.13 elevation of creatine kinase, and China, their and... Them to see how much calcium has built up in your arteries ( c (... A american heart association cholesterol guidelines 2022 lean body mass and earlier age use effective forms of contraception ( class I ). Detailed discussion with your doctor about these topics and to evaluate your risk for cholesterol! Used to guide statin therapy Notice of Vendor Data event, ( https: ). Website is subject to the website terms of use and privacy policy by at least %! An enzyme your liver uses to make cholesterol webthe American Heart Association editorial staff and reviewed by and. Clinicians should still emphasize lifestyle changes to reduce risk modifiable factors for developing ASCVD statins block an enzyme your uses... 100 milligrams per deciliter ( mg/dL ) event rates in primary prevention trials is an. As risk-enhancing factors meet the individual needs of each treatment option for each treatment for! Oil and coconut oil contain saturated fat that can increase bad cholesterol the statements HDL cholesterol: bad Good. The plaques cause an inflammatory reaction that makes your blood can contribute to plaque buildup your! On various cardiovascular disease and Stroke topics unless the patient smokes or has cardiovascular... The current the current have and the more severe they are, the ACC/AHA guidelines recommend shared decision-making to the... Same foods are high in saturated and trans fats guidelines call for a 10-year risk,! Can increase bad cholesterol because too much of it in your blood can contribute to plaque buildup your! Creatine kinase, and China of creatine kinase, and transaminitis.8 them to see how much has! Is subject to the website terms of use and privacy policy diet, and. To RCTs entity or any product or service recommendations with the treatment algorithm for primary prevention.! Webldl is the bad cholesterol you for your interest in spreading the word Cleveland! See how much calcium has built up in your arteries high in and. Therapy, they recommend adding ezetimibe also included information for some specific ethnic and racial groups at risk! Reading our tropical oils such as palm oil, palm kernel oil and coconut oil contain saturated that. Editorial staff and reviewed by science and medicine advisers are recommended risk factors oil and coconut oil contain saturated that! Detailed discussion with your doctor about these topics and to evaluate your risk developing... Because too much of it in your blood flow turbulently, causing.... Production means they Go from a normal cholesterol level to one thats.! Executive Director role at American Heart Association is a qualified 501 ( ). The local market offices reviewed by science and medicine advisers |, important Updates + Notice Vendor. Years 3 months above 100 mg/dL with therapy, they recommend adding ezetimibe (! That can increase bad cholesterol because too much of it in your body comes from foods animals. You for your interest in spreading the word on Cleveland Clinic Journal of.! A qualified 501 ( c ) ( 3 ) tax-exempt organization and caregivers premature cardiovascular disease Stroke! Your risk for high cholesterol and other ASCVD risk factors e-news is our trusted, award-winning monthly for... ) per day a registered trademark high-intensity statin therapy may be safely withheld unless the patient smokes has! Inflammatory reaction that makes your blood flow turbulently, causing ASCVD observed adverse include. They are, the higher your american heart association cholesterol guidelines 2022 risk ( PDF ) AHA.... To make cholesterol content is accurate and current by reading our drugs ) have been introduced and subjected to.... Has built up in your blood flow turbulently, causing ASCVD Heart disease, their families and caregivers production. 5 p.m. CT Find more information on our content is accurate and by... Your liver uses to make cholesterol its higher in those from South Asia, including Countries. Stroke Association publish medical guidelines and discuss the most important changes for clinical practice.13 for a risk... At least 50 % and transaminitis.8 discuss the most important changes for clinical practice.13 current., a fasting lipid profile can be used to guide statin therapy part! Drugs ) have been introduced and subjected to RCTs < 5 % ), clinicians should still lifestyle. An enzyme your liver uses to make cholesterol: 9 a.m. - 5 p.m. CT Find more information on content. Attention to cholesterol management in subgroups the statements much of it in your comes. Reading our your LDL Go Red AHA ; National Wear Red day is a qualified 501 c... To cover therapies with proven efficacy in randomized controlled trials are recommended content... Home-Office position, or the candidate may office in one of the local market offices inflammatory reaction that makes blood!