This image demonstrates a fracture of the scaphoid bone. Fractures of the scaphoid are clinically important decause the blood supply enters the bone distally and then moves proximally. If the blood supply is distrupted then there is potential for the patient to develop avascular necrosis of the scaphoid.
almost 12 years ago
This 3D medical animation shows a blood clot forming in a lower leg vein, creating a deep vein thrombosis, or DVT. When the thrombus breaks free of the valve, it is called an embolus, and travels toward the heart and lungs. The animation ends by showing the embolus lodging in the lung tissue forming a life-threatening pulmonary embolism (PE).
over 11 years ago
<p>Why is a 12 hour erection a bad thing? How should we manage the patient with bloody urine? A curbside consult with urologist Brian Shaffer, MD. </p <p>Your emails</p <p>An unusual southern accent</p <p>and much more...</p <p> </p <p><em><strong><span style="font-size: x-large; color: #0000ff;">Urology Primer</span></strong></em></p <p> </p <p><strong><span style="font-size: large;">Priapism<span style="font-size: 10px; font-weight: normal;"> a rare condition that causes a persistent, and often painful, penile erection.</span></span></strong></p <p> </p <p>Priapism is drug induced, injury related, or caused by disease, not sexual desire. As in a normal erection, the penis fills with blood and becomes erect. However, unlike a normal erection that dissipates after sexual activity ends, the persistent erection caused by priapism is maintained because the blood in the penile shaft does not drain. The shaft remains hard, while the tip of the penis is soft. If it is not relieved promptly, priapism can lead to permanent scarring of the penis and inability to have a normal erection.</p <p> </p <p><strong><span style="font-size: large;">Clot retention</span></strong></p <p>blood clots in the bladder prevent urine emptying</p <p> </p <p><span style="font-size: large;"><strong>Coude Catheter</strong></span></p <p>a semi-rigid catheter that has a curve or bend at the tip. The curved tip allows it to navigate over the curvature of the prostate or any other urethral obstruction it may encounter. A Coude catheter is specifically designed for this purpose. Coude catheters are available in size 8 French to size 26 French.</p <p> </p <p><strong><span style="font-size: large;">De Novo</span></strong></p <p>The Latin expression de novo literally means something akin to "from the beginning" or "anew"</p <p> </p <p><strong><span style="font-size: large;">Interstitial cystitis</span></strong></p <p>also called painful bladder syndrome — is a chronic condition characterized by a combination of uncomfortable bladder pressure, bladder pain and sometimes pain in your pelvis, which can range from mild burning or discomfort to severe pain.</p <p> </p <p><strong><span style="font-size: large;">Cystoscopy</span></strong></p <p>the use of a scope (cystoscope) to examine the bladder. This is done either to look at the bladder for abnormalities or to help with surgery being performed on the inside of the urinary tract (transurethral surgery).</p <p> </p <p><strong><span style="font-size: large;">CT Urogram</span></strong></p <p>A urogram is a radiograph, or X-ray image, of the urinary tract. </p <p> </p <p><strong><span style="font-size: large;">TURP</span></strong></p <p>transurethral resection of the prostate</p <p> </p <p><strong><span style="font-size: large;">Foley catheter</span></strong></p <p>a thin, sterile tube inserted into the bladder to drain urine. Because it can be left in place in the bladder for a period of time, it is also called an indwelling catheter. It is held in place with a balloon at the end, which is filled with sterile water to hold it in place. The urine drains into a bag and can then be taken from an outlet device to be drained</p <p> </p <p> </p>
Rob Orman, MD
about 11 years ago
When should a patient receive a transfuse of blood? What is an acceptable hemoglobin concentration in an ICU patient and should we use EPO? Summer is a time when the blood banks often have a single day's worth of blood. Perhaps with more conservative transfusion practices we can avoid or certainly help with some of the blood shortages. Everyone wants to put patients on Epo, but does it increase the hemoglobin concentration enough to off set its high cost?
Jeffrey S. Guy, MD, FACS
about 11 years ago
From wikipedia: “An arterial blood gas (ABG) is a blood test that is primarily performed using blood from an artery. It involves puncturing an artery with a thin needle and syringe and drawing a small volume of blood. The most common puncture site is the radial artery at the wrist, but sometimes the femoral artery [...]
about 11 years ago
Prof. Denning describes chronic pulmonary aspergillosis (CPA) as a long-term invasive disease, generally episodic in nature. Common symptoms are cough, shortness of breath, weight loss, tiredness, coughing up blood and aching or discomfort of the chest.
about 11 years ago
Explanations of procedures and signs associated with various OSCE style stations relevant to first and second year MBBS, including pictures of relevant pathology and illustrative diagrams. Includes - resuscitatio - peripheral pulse - blood pressur - cardiovascular exam (including relevant aspects of the general examination - ECG lead placemen - Respiratory exam (including relevant aspects of the general examination - peak flo - vitalograp - abdominal examination (including relevant aspects of the general examination - PNS (motor function - Reflexes alon - cranial nerve exa - Thyroid exa - cervical and lymph node (diagrams only - Shoulder joint exa - Hip joint exam
over 10 years ago
First Year Faculty of Life Sciences notes from lectures and textbooks. There may be paragraphs copied from Martini et al. (2010) so if anyone has any issues with copyright or plagiarism please let me know and I will remove it immediately.
about 10 years ago