60+ träffar

ArticleProcedurer
Eye examination and corneal foreign body

…soft globe — because a perforated eye must never be instrumented, have its pressure measured, or be palpated. Indications A sensation of something in the eye…

ArticleProcedurer
Otoscopy and ear syringing

…that did not need syringing. The second commonest is that the syringing is performed on a tympanic membrane that was already perforated. Indications Otoscopy: earache…

ArticleProcedurer
Foreign body in the ear and nose

…cannot be kept still without sedation. Suspected tympanic membrane perforation. Irrigation is contraindicated in: suspected perforated tympanic membrane, organic material that swells, batteries and magnets…

ArticleProcedurer
Bone marrow aspiration and biopsy

…the iliac crest is inaccessible, but biopsy must never be taken from the sternum — the needle may perforate into the mediastinum. The anterior superior iliac…

ArticleProcedurer
Pericardiocentesis

Procedurer Pericardiocentesis is performed on the basis of the haemodynamics, not the volume of fluid. A litre that has accumulated slowly can be asymptomatic, while…

ArticleProcedurer
Blood transfusion and massive haemorrhage

…wrong patient — a mislabelled tube, or an identity check performed at the nurses' station instead of at the bedside. The check against the patient's…

ArticleProcedurer
Spirometry

…The quality of the test determines its entire value: a poorly performed manoeuvre gives a falsely low FVC and thus a falsely normal FEV₁/FVC…

ArticleCPR
Traumatic cardiac arrest

…definitively established as the cause of cardiac arrest, cardiopulmonary resuscitation (CPR) should be performed per standard guidelines. Cardiac arrests due to trauma are characterized by…

ArticleProcedurer
Edrophonium test

…rarely, asystole, and the test must therefore never be performed without atropine, ECG monitoring and access to airway support. Indications Clinically suspected myasthenia gravis in…

ArticleProcedurer
Gastric lavage and activated charcoal

…be discussed later. Lavage must never be performed routinely in poisoning — it rarely alters the course and adds a risk of aspiration. Repeated doses of…

ArticleProcedurer
Joint aspiration

…always weighs more heavily). A joint prosthesis: the aspiration must be performed by an orthopaedic surgeon under strictly sterile conditions. For corticosteroid injection there is…

ArticleProcedurer
Lumbar puncture

…clinical care programme for bacterial CNS infections states that CT must not be performed before lumbar puncture in suspected bacterial meningitis — not even with a…

ArticleProcedurer
Short Synacthen test

…cortisol and ACTH are taken immediately, treatment is given, and the test is performed later. Contraindications Known hypersensitivity to tetracosactide or ACTH. Marked atopic disease…

ArticleCardiology
Myocardial Perfusion Imaging With SPECT and PET

…provides tomographic information about relative regional perfusion. Imaging is generally performed at rest and during exercise or pharmacological stress, allowing comparison between myocardial blood flow…

ArticleCPR
Cardiac arrest due to pneumothorax

…using a needle due to reduced risk of injury. Thoracostomy should be performed promptly following needle decompression. Thoracostomy with drainage typically serves as a stabilizing…

ArticleCPR
Causes of sudden cardiac arrest

…Yet, autopsies are often not performed due to the high costs. The difficulties in determining the cause of out of hospital cardiac arrest are reflected…

ArticleEchocardiography
Hemodynamic principles and calculations

…exceptions. Prior to the Doppler era, hemodynamic assessments were performed by means of right heart catheterization (with Swan Ganz catheter [ pulmonary artery catheter ]). However, hemodynamic…

ArticleEchocardiography
Tricuspid stenosis

…disease (e.g mitral stenosis) requires intervention. Valve replacement can be performed with biological or mechanical prostheses. The former is preferred due to the lower…

ArticleProcedurer
Abscess incision and drainage

…oral or intravenous analgesia, or procedural sedation in advance. Inadequate analgesia is the commonest reason for an incompletely performed drainage. Procedure 1. Locate the centre…

ArticleProcedurer
Dix–Hallpike test and Epley manoeuvre

…experienced with the head impulse test; performed on the wrong patient or by an inexperienced examiner it is unreliable. A single central feature is enough…

ArticleCardiology
Abdominal Aortic Aneurysm: Screening and Surveillance

…thresholds. Clinical Presentation and Symptoms Most AAAs are asymptomatic and are identified either during routine abdominal examination or incidentally on imaging performed for another indication…

ArticleMyocardial ischemia and infarction
Intravascular Imaging: IVUS and OCT for PCI Optimisation

…backscatter of the light signal. Imaging is therefore typically performed during contrast injection or another method of temporary blood displacement. OCT is particularly useful for…

ArticleMyocardial ischemia and infarction
Posterior acute myocardial infarction (STEMI)

…the back. In clinical practice, this is often performed by simply placing the electrodes to lead V4, V5 and V6 on the back. One might…

ArticleArrhythmias and arrhythmology
Vasovagal Syncope: Diagnosis, Tilt Testing and Treatment

…episodes and serious harm. This evaluation should include a detailed history, thorough questioning of eyewitnesses, and a complete physical and neurologic examination. Blood pressure and…

ArticleCPR
Cardiac arrest in intoxication (poisoning)

…and prolonged ICU admissions. Pending the correct level of care, the following actions can be performed. CPR Initiate CPR in adherence to standard guidelines. However…

ArticleCPR
Cardiac tamponade causing cardiac arrest

…it should be performed within 15 minutes of the onset of collapse. Pericardiocentesis , performed using a large needle introduced either via the subxiphoid or apical…

ArticleEchocardiography
Pulsed Wave Doppler

…in the body. The investigator specifies where the measurement should be performed by moving the sample volume (SV) along the Doppler line. The sample volume…