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12

Gay blood donor rules need changing - Michael Fabricant - BBC News

A Tory MP proud his party brought in gay marriage, now wants it to revise the rules on gay men giving blood.  
BBC News
about 5 years ago
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The doctor will dance for you now

Why are French clowns invading hospitals and should there be dancing in the wards? Meet the performers injecting fresh blood into medical training, reports Lyndsey Winship  
the Guardian
about 5 years ago
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Blood Gases (O2, CO2 and ABG)

https://www.facebook.com/ArmandoHasudungan Support me: http://www.patreon.com/armando Instagram: http://instagram.com/armandohasudungan Twitter: https://twit...  
YouTube
about 5 years ago
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145

Cardiology - Coronary Blood Supply

https://www.facebook.com/ArmandoHasudungan Support me: http://www.patreon.com/armando Instagram: http://instagram.com/armandohasudungan Twitter: https://twit...  
YouTube
almost 5 years ago
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Peripheral Resistance and Blood Flow

http://www.interactive-biology.com - This is an answer to a question that was asked when I did my Anatomy & Physiology Academy on how exactly resistance work...  
YouTube
almost 5 years ago
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49

Blood Pressure Regulation (Lecture)

http://www.interactive-biology.com - How is Blood pressure regulated? How do cardiac output and peripheral resistance fit into the equation? What are the neg...  
YouTube
almost 5 years ago
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38

Myeloproliferative Disease: Practice Essentials, Background, Pathophysiology

Myeloproliferative diseases (MPDs) are a heterogenous group of disorders characterized by cellular proliferation of one or more hematologic cell lines in the peripheral blood, distinct from acute leukemia. According to the French-American-British (FAB) classification, chronic myeloproliferative diseases consist of 4 diseases: chronic myeloge...  
emedicine.medscape.com
almost 5 years ago
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63

Metabolic Acidosis. Read about Metabolic acidosis. | Patient

Metabolic acidosis is defined as an arterial blood pH <7.35 with plasma bicarbonate <22 mmol/L. Learn about Metabolic acidosis on Metabolic acidosis page  
Patient.co.uk
over 4 years ago
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Hyponatraemia. Abnormally Low Sodium Levels Information | Patient

Read about low sodium levels in the blood, medically known as Hyponatraemia. Presentation, causes and investigations of Hyponatraemia on Hyponatraemia page.  
Patient.co.uk
over 4 years ago
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Hypokalemia - Wikipedia, the free encyclopedia

Hypokalemia (American English) or hypokalaemia (British English), also hypopotassemia or hypopotassaemia (ICD-9), refers to the condition in which the concentration of potassium (K+) in the blood is low. The Greek prefix hypo- means "under" (contrast with its opposite hyper-, meaning "over"); kal- refers to kalium, the Neo-Latin for potassium, and -emia means "condition of the blood" in Greek.  
en.wikipedia.org
over 4 years ago
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An Introduction to Extracorporeal Membrane Oxygenation (ECMO)

Extracorporeal Membrane Oxygenation (ECMO) is a form of partial cardiopulmonary bypass used for long-term support of respiratory and/or cardiac function. This technology arose from cardiopulmonary bypass used for cardiac surgery. Initial systems used bubble oxygenators which were poorly suited for prolonged use because of their tendency to hemolyze blood. Membrane oxygenators made long-term use of ECMO possible. The first report of successful ECMO support of an adult was published by Hill in 1972.  
perfusion.com
over 4 years ago
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32

Hemostasis

1. Vasoconstriction of a damaged blood vessel slows the flow of blood and thus helps to limit blood loss. This process is mediated by:  
biosbcc.net
over 4 years ago
Www.bmj
1
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HRT increases risk of blood clots and stroke, finds new analysis

Hormone replacement therapy (HRT) offers women no protection against having or dying from a myocardial infarction while increasing the risk of blood clots and stroke, a new analysis published by the Cochrane Collaboration has shown.1  
bmj.com
over 4 years ago
Www.bmj
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HRT increases risk of blood clots and stroke, finds new analysis

Hormone replacement therapy (HRT) offers women no protection against having or dying from a myocardial infarction while increasing the risk of blood clots and stroke, a new analysis published by the Cochrane Collaboration has shown.1  
bmj.com
over 4 years ago
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More blood for India

“By donating a unit of blood a year a person can get more blessings than by going to a place of worship,” said Harsh Vardhan, then union health minister, launching “national voluntary blood donation fortnight” on 1 October. With this date already established as “national voluntary blood donation day,” Vardhan urged people to also turn their birthdays into opportunities for donating blood.  
bmj.com
over 4 years ago
Www.bmj
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23

Cough and weight loss in a young man

A 28 year old man was referred to the emergency department by his general practitioner after presenting with a two day history of haemoptysis. He described coughing up a teaspoon of fresh blood in the morning after a month of coughing up rusty coloured sputum. This was on a background of eight months of persistent cough associated with progressive lethargy and weight loss, with isolated episodes of night sweats. His travel history showed no exposure to high risk areas for tuberculosis or HIV, and he denied any high risk behaviours for contracting HIV. He had never smoked.  
bmj.com
over 4 years ago
2
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WHO | WHO issues its first hepatitis B treatment guidelines

WHO guidance for the treatment of chronic hepatitis B, a viral infection which is spread through blood and body fluids.  
who.int
over 4 years ago
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24

Arterial Blood Gas Cases - Clinical Respiratory Diseases & Critical Care Medicine, Seattle - Med 610 - University of Washington School of Medicine

Here are a series of cases that include arterial blood gases. Each case is followed by an explanation of the acid-base status, the oxygenation status and a summary of the patient's clinical picture.  
courses.washington.edu
over 4 years ago
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Surgery Mock MCQ

An obese 63 year old lady presents with jaundice. There is no history of abdominal pain. Examination of her abdomen reveals a palpable gall bladder. There is evidence of extensive pruritis. She tells you she drinks 42 units of alcohol a week. Her blood results are as follows: Albumin 32 (35-50) Alk Phos 456 (<110) ALT 88 (<40) Bilirubin 120 (<20) INR 1.6 GGT 400 (0-70) What’s the most likely diagnosis? a. Gallstones b. Paracetamol Overdose c. Pancreatic cancer d. Alcoholic Hepatitis e. Primary billiary cirrhosis  
Af Del
almost 6 years ago
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LWW: Case Of The Month - May 2013

This month’s case is by Barbara J. Mroz, M.D. and Robin R. Preston, Ph.D., author of Lippincott’s Illustrated Reviews: .Physiology (ISBN: 9781451175677). For more information, or to purchase your copy, visit: http://tiny.cc/PrestonLIR, with 15% off using the discount code: MEDUCATION. The case below is followed by a choice of diagnostic tests. Select the one lettered selection that would be most helpful in diagnosing the patient’s condition. The Case A 54-year-old male 2 pack-per-day smoker presents to your office complaining of cough and shortness of breath (SOB). He reports chronic mild dyspnea on exertion with a daily cough productive of clear mucus. During the past week, his cough has increased in frequency and is now productive of frothy pink-tinged sputum; his dyspnea is worse and he is now short of breath sometimes even at rest. He has had difficulty breathing when lying flat in bed and has spent the past two nights sleeping upright in a recliner. On physical examination, he is a moderately obese male with a blood pressure of 180/80 mm Hg, pulse of 98, and respiratory rate of 22. His temperature is 98.6°F. He becomes winded from climbing onto the exam table. Auscultation of the lungs reveals bilateral wheezing and crackles in the lower posterior lung fields. There is pitting edema in the lower extremities extending up to the knees.  Question Which if the following tests would be most helpful in confirming the correct diagnosis? A. Spirometry B. Arterial blood gas C. Complete blood count D. B-type natriuretic peptide blood test E. Electrocardiogram Answer? The correct answer is B-type natriuretic peptide blood test. Uncomfortable breathing, or feeling short of breath, is a common medical complaint with multiple causes. When approaching a patient with dyspnea, it is helpful to remember that normal breathing requires both a respiratory system that facilitates gas exchange between blood and the atmosphere, and a cardiovascular system that transports O2 and CO¬2 between the lungs and tissues. Dysfunction in either system may cause dyspnea, and wheezing (or bronchospasm) may be present in both cardiac and pulmonary disease. In this patient, the presence of lower extremity edema and orthopnea (discomfort when lying flat) are both suggestive of congestive heart failure (CHF). Elevated blood pressure (systolic of 180) and a cough productive of frothy pink sputum may also be associated symptoms. While wheezing could also be caused by COPD (chronic obstructive pulmonary disease) in the setting of chronic tobacco use, the additional exam findings of lung crackles and edema plus systolic hypertension are all more consistent with CHF. What does the B-type natriuretic peptide blood test tell us? When the left ventricle (LV) fails to maintain cardiac output (CO) at levels required for adequate tissue perfusion, pathways are activated to increase renal fluid retention. A rising plasma volume increases LV preload and sustains CO via the Frank-Starling mechanism. Volume loading also stimulates cardiomyocytes to release atrial- (ANP) and B-type (BNP) natriuretic peptides. BNP has a longer half-life than ANP and provides a convenient marker for volume loading. Plasma BNP levels are measured using immunoassay; levels >100 pg/mL are suggestive of overload resulting in heart failure. How does heart failure cause dyspnea? Increasing venous pressure increases mean capillary hydrostatic pressure and promotes fluid filtration from the vasculature. Excess filtration from pulmonary capillaries causes fluid accumulation within the alveoli (pulmonary edema) and interferes with normal gas exchange, resulting in SOB. Physical signs and symptoms caused by high volume loading include: (1) Lung crackles, caused by fluid within alveoli (2) Orthopnea. Reclining increases pulmonary capillary hydrostatic pressure through gravitational effects, worsening dyspnea when lying flat. (3) Pitting dependent edema caused by filtration from systemic capillaries, an effect also influenced by position (causing edema in the lower legs as in our ambulatory patient or in dependent areas like the sacrum in a bedridden patient). What would an electrocardiogram show? Heart failure can result in LV hypertrophy and manifest as a left axis deviation on an electrocardiogram (ECG), but some patients in failure show a normal ECG. An ECG is not a useful diagnostic tool for dyspnea or CHF per se. Wouldn’t spirometry be more suitable for diagnosing the cause of dyspnea in a smoker? Simple spirometry will readily identify the presence of airflow limitation (obstruction) as a cause of dyspnea. It's a valuable test to perform in any smoker and can establish a diagnosis of chronic obstructive pulmonary disease (COPD) if abnormal. While this wheezing patient is an active smoker who could have airflow obstruction, the additional exam findings above point more to a diagnosis of CHF. What would an arterial blood gas show? An arterial blood gas measures arterial pH, PaCO¬2, and PaO2. While both CHF and COPD could cause derangements in the values measured, these abnormalities would not necessarily be diagnostic (e.g., a low PaO2 could be seen in both conditions, as could an elevated PaCO¬2). Would a complete blood count provide useful information? A complete blood count could prove useful if anemia is a suspected cause of dyspnea. Test result BNP was elevated (842 pg/mL), consistent with CHF. Diuretic treatment was initiated to help reduce volume overload and an afterload reducing agent was started to lower blood pressure and improve systolic function.  
Lippincott Williams & Wilkins
over 6 years ago