Histology of Heart Cardiac Muscle

Jennifer Lawton, M.D., is professor and chief of the Johns Hopkins Division of Cardiac Surgery, as well as director of the Cardiac Surgery Research Laboratory and program director of the cardiothoracic fellowship training program at Johns Hopkins. Her areas of expertise include valve surgery, including minimally invasive surgery, coronary artery bypass grafting on- and off-pump, all arterial revascularization, as well as surgery for aortic dissection and ascending aneurysm. For more information about Dr. Lawton visit http://www.hopkinsmedicine.org..../heart_vascular_inst

Thrombotic thrombocytopenic purpura (TTP) is a rare blood disorder characterized by clotting in small blood vessels of the body (thromboses), resulting in a low platelet count. In its full-blown form, the disease consists of the pentad of microangiopathic hemolytic anemia, thrombocytopenic purpura, neurologic abnormalities, fever, and renal disease

Sickle cell anemia is an inherited form of anemia: This is a condition in which there aren't enough healthy red blood cells to carry adequate oxygen throughout your body. Normally, your red blood cells are flexible and round, moving easily through your blood vessels. In sickle cell anemia, the red blood cells become rigid and sticky and are shaped like sickles or crescent moons. These irregularly shaped cells can get stuck in small blood vessels, which can slow or block blood flow and oxygen to parts of the body. There's no cure for most people with sickle cell anemia. However, treatments can relieve pain and help prevent further problems associated with sickle cell anemia.

Claudication, which is defined as reproducible ischemic muscle pain, is one of the most common manifestations of peripheral arterial occlusive disease (PAOD) caused by atherosclerosis. Claudication occurs during physical activity and is relieved after a short rest. Pain develops because of inadequate blood flow.

Basic ECG Interpretation Our ECG Interpretation Training and Reference Guides provide basic lessons for ECG analysis as well as a quick reference guide for over 40 types of ECG tracings. The arrhythmia drills and quizzes allow you to practice ECG interpretation. What is ECG Interpretation? An electrocardiogram or ECG, records electrical activity in the heart. An ECG machine records these electrical signals across multiple heart beats and produces an ECG strip that is interpreted by a healthcare professional. How Electrocardiograms Work - ECG Strips To briefly summarize the components of a normal ECG tracings, it consist of waveform components which indicate electrical events during one heart beat. These waveforms are labeled P, Q, R, S, T and U. P wave is the first short upward movement of the ECG tracing. It indicates that the atria are contracting, pumping blood into the ventricles. The QRS complex, normally beginning with a downward deflection, Q; a larger upwards deflection, a peak (R); and then a downwards S wave. The QRS complex represents ventricular depolarization and contraction. The PR interval indicates the transit time for the electrical signal to travel from the sinus node to the ventricles. T wave is normally a modest upwards waveform representing ventricular repolarization. ECG Interpretation illustration spacer image ECG Training - Introduction The focus of this introductory ECG course is to provide a tutorial about the main features of ECGs along with a method for analyzing ECGs. This method includes assessment of rhythm, calculating heart rate, observing P-wave forms, measurement of intervals and segments and the evaluation of other relevant waves. ECG practice exercises serve to reinforce the lesson content.

Watch that video of Indian boy has 232 teeth removed from his mouth

Perineal repair after episiotomy or spontaneous obstetric laceration is one of the most common surgical procedures. Potential sequelae of obstetric perineal lacerations include chronic perineal pain,1 dyspareunia,2 and urinary and fecal incontinence.3–5 Few studies of laceration repair techniques exist to support the development of an evidence-based approach to perineal repair. This article discusses a repair method that emphasizes anatomic detail, with the expectation that an anatomically correct perineal repair may result in a better long-term functional outcome.

Large Breast Augmentation

Cigarette contain tobacco that is very harmful but vaporizers does not contain tobacco. ... The most basic difference between vaping and cigarette usage is that cigarettes require combustion. You need fire to light a cigarette. On the other hand, vaping requires electricity and creates vapor.

An enlarged spleen can be caused by infections, cirrhosis and other liver diseases, blood diseases characterized by abnormal blood cells, problems with the lymph system, or other conditions. Other causes of an enlarged spleen include: Inflammatory diseases such as sarcoidosis, lupus, and rheumatoid arthritis.

Your doctor says your chest pain (angina) is caused by blockages in your heart arteries and that you need to get those blockages taken care of. What are your options? First, it's important to determine what type of angina you have. Different types of angina may need different treatments. Common types of angina are chronic stable angina — a type of angina that occurs when your heart is working hard — and unstable angina, which is new chest pain or chest pain that is getting worse. Other types of angina include variant angina — a rare type of angina caused by a spasm in the coronary arteries — and microvascular angina, which can be a symptom of disease in the small coronary artery blood vessels. Unstable angina is a serious situation and requires emergency treatment. Treatment for unstable angina involves hospitalization with medications to stabilize your condition. Some people with unstable angina may require a procedure called angioplasty (also known as percutaneous coronary intervention), usually combined with the placement of a small metal tube called a stent. In some cases of unstable angina, heart surgery (coronary bypass surgery) may be needed. Generally, if you have mild stable angina that is controlled by medications, you may not need further treatments. If you're experiencing symptoms of chronic stable angina even after taking medications and making lifestyle changes, or if you're at higher risk of serious heart disease, your doctor may recommend angioplasty or coronary bypass surgery. Making a decision on how to treat your angina can be difficult, but knowing the benefits and risks of stents and medications may help you decide.

Acanthamoeba keratitis is a rare disease in which amoebae invade the cornea of the eye. It may result in permanent visual impairment or blindness.

Ellis Parker MSN, RN-BC, CNE, CHSE covers Incentive Spirometry. The Critical Nursing Skills - Shorts series is intended to help RN and PN nursing students study for nursing school exams, including the ATI, HESI and NCLEX.

#NCLEX #HESI #Kaplan #ATI #NursingSchool #NursingStudent⁠ #Nurse #RN #PN #Education #LVN #LPN #clinicalskills #safety

Comments? Suggestions? Please share! Your feedback can help inform our future videos and study resources. 🙂

🤔🤔🤔 DO YOU WANT TO PASS your classes, proctored exams and the NCLEX? 🤔🤔🤔 Our flashcards are the best you can buy. They are built with a single goal: help you pass with no fluff. Everything you need, and nothing you don’t. Don’t take our word for it, though! Check out our hundreds of 5-star reviews from nurses who passed their exams and the NCLEX with Level Up RN.

Our #Clinical Nursing Skills Flashcards are available at
➡️ https://bit.ly/clinicalnursingskills

👇SHOP ALL OUR FLASHCARDS👇
http://bit.ly/allstudycards

🗂️ Our Ultimate Nursing School Survival kit is your number 1 resource to get through nursing school and to pass the NCLEX. Whether you're just starting school or you’re already prepping for the NCLEX, this bundle of flashcards is the best you can buy. It covers all the information you need to know to pass all your exams and it has FREE shipping!
➡️ https://bit.ly/TUNSSK ⬅️

📧 LOOKING FOR FREE RESOURCES TO HELP WITH YOUR EXAMS? Get exclusive tips, latest video releases and more delivered to your email!
➡️ https://www.leveluprn.com/signup ⬅️

Want perks? Join our channel!
➡️ https://www.youtube.com/leveluprn/join ⬅️

👩⚕️ LEVEL UP NURSE SQUAD 👩⚕️
All of the nurses at Level Up RN are here to help! Cathy Parkes started helping her fellow classmates back when she was in nursing school, tutoring so they could pass their exams and graduate. After she got her BSN and started working as an RN at Scripps Encinitas Hospital, she started this YouTube channel to help nursing students around the world. Since then she has built a team of top-notch dedicated nurses and nurse educators who are focused on improving nursing education and supporting career advancement for nurses everywhere. With flashcards, videos, courses, organizational tools and more, we are singularly focused on helping students and nurses Level Up on their exams and nursing careers.

👋 STAY CONNECTED 👋
TikTok: https://tiktok.com/@leveluprn
Instagram: https://www.instagram.com/leveluprn/
Facebook: https://fb.me/LevelUpRN
Pinterest: https://www.pinterest.com/leveluprn/

What's helping me become a better doctor

Getting the right diagnosis often isn’t easy for psychiatric conditions. In our field, we don’t yet have biologic tests that can easily define one condition from another. If your blood pressure is 140 over 90, you have hypertension or high blood pressure. In mental health, we have to rely on a description of patterns or symptoms to makes diagnoses. This model is fraught with challenges. Without a clear biological model to work from, and given the complexity of the human brain, the field has settled upon dividing these descriptions of symptoms into syndromes. The Diagnostic and Statistical Manual of Mental

A good starting point for any scientist in any field is to recognize that there is much we do not know. We do not know, for example, why there is more matter than antimatter in the universe. We do not know very well how the evolution of the dinosaurs filtered out. And, perhaps most surprising of all is that we do not know very well how many organs the human body has or what all its functions are.

There are 3 genetic types of FHH based on chromosome location. FHH type 1 accounts for 65% of cases and is due to inactivating mutations in the CASR gene, localized to 3q21.1. This gene encodes the calcium-sensing receptor (CaSR). Loss of CaSR function results in a reduction in the sensitivity of parathyroid and renal cells to calcium levels so hypercalcemia is perceived as normal. The other 35% have either a mutation GNA11 (19p13.3) seen in FHH type 2 or AP2S1 (19q13.2-q13.3) seen in FHH type 3 (see these terms) or in genes not yet discovered. FHH is rarely caused by auto-antibodies against CaSR in those without a mutation.