Procedurer The single most important step in any eye injury is to measure and document the visual acuity before anything else is done. The second…

Procedurer The laryngeal mask is the single most important tool when intubation fails, since it restores oxygenation without requiring a view down into the larynx…

Cardiology SPECT vs. PET In SPECT (Single Photon Emission Computed Tomography), radiotracers emit gamma photons directly. These gamma rays are detected by gamma cameras to…

…raised pressure without organ involvement — lower it orally over days. Hypertensive emergency: raised pressure with acute organ damage (encephalopathy, pulmonary oedema, aortic dissection, acute renal…

[calc_map] Mean arterial pressure (MAP) represents the average pressure within the arteries throughout a single cardiac cycle, encompassing both systole and diastole. It is…

…Myocardial ischemia and infarction Definition and Clinical Purpose Myocardial perfusion imaging (MPI) with single photon emission computed tomography (SPECT) or positron emission tomography (PET) is…

… A single blood pressure value does not define a hypertensive emergency. Even a blood pressure above 220/120 mmHg can occur without acute organ damage…

…ECG 2 . Spontaneous termination of ventricular tachycardia (VT). ECG 3 . A single ventricular beat, followed by a three ventricular beats (VT). ECG 4 . Regular supraventricular…

…the bedside. The check against the patient's own identity immediately before transfusion is the single most important safety measure in the entire chain. In…

…simple — bicarbonate and a look at the urine dipstick — but it fails routinely for one single reason: without normal potassium the urine cannot be alkalinised…

…et al 1 ). Representative single beat morphs for a low risk patient (blue) and the corresponding high risk morph (red). Beyond the difference in R…

…bioavailability ranging from 25% to 65% and minimal hepatic first pass extraction. Following a single oral dose, plasma concentrations peak within 3 to 6 hours…

…non contrast, electrocardiographically gated computed tomography (CT) scan. Image acquisition generally requires a single breath hold and does not require intravenous access, premedication, or special…

…of management Overtreatment may impair autoregulation and cause ischemia Acute rapid reduction may cause harm without prognostic benefit Clinical Presentation and Symptoms Symptoms depend on…

…deviations include: Causes of Right Axis Deviation: Pulmonary hypertension (primary or secondary) [9, 16] Severe pulmonary stenosis [8] Right ventricular hypertrophy [8, 17] Pulmonary embolism…

…diagnosing hypertension and the effectiveness of antihypertensive treatments, targeting hypertension is the single most effective public health measure available ( Ezzati et al, Lim et al )…

…magnetic resonance (CMR), cardiac computed tomography (CT), single photon emission computed tomography (SPECT), positron emission computed tomography (PET) and coronary angiography. These modalities aim to…

…conditions. MPI uses radiotracers in combination with single photon emission computed tomography (SPECT) or positron emission tomography (PET) to assess myocardial perfusion and blood flow…

…valve closure, the ventricle relaxes and pressure drops rapidly, without any significant changes in volume. This phase is referred to as isovolumetric relaxation (IVR; Figures…

…triggers it [1,2]. The single most important practical rule is: Continuous acute dizziness with spontaneous nystagmus: consider HINTS plus, but only if the examiner…

…and the appropriate action differs fundamentally between these cases. Pressures in the heart and pulmonary circulation Flow, resistance and oxygen transport Formulas Mean arterial pressure…

…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…

…seizures, confusion, a change in behaviour, collapse or an acute neurological deficit. Hypoglycaemia can cause hemiparesis, aphasia and radiological changes resembling ischaemic stroke. Glucose measurement…

…immunotherapies may require separate local protocols. Definition Criterion Practical definition : : Fever A single temperature of at least 38.3 degrees, or at least 38.0…

…combination with acetylsalicylic acid (ASA), is indicated for the prevention of atherothrombotic events in adult patients with acute coronary syndromes (ACS), including: Unstable angina (UA…

…inhibitor produces dual antiplatelet therapy (DAPT), while treatment with one antiplatelet drug constitutes single antiplatelet therapy (SAPT). The benefit of antiplatelet therapy must always be…

…through changes in DNA acetylation. Lipid lowering efficacy Bempedoic acid is available as a single daily dose of 180 mg. The LDL C response varies…

…or definite familial hypercholesterolaemia Other markedly abnormal single risk factors or genetic, rare lipid, or BP disorders Pregnancy Established ASCVD includes previous acute coronary syndrome…

…DASH style diets. Their effects are multidimensional and cannot be adequately inferred from changes in a single intermediate marker such as cholesterol. Dietary composition may…

…heritable aortopathies, selected congenital heart diseases, pulmonary arterial hypertension and thromboembolic disorders. Most recognised heritable cardiovascular conditions demonstrate autosomal dominant transmission, in which an affected…

…receptor endocytosis and produce an FH like phenotype. Individuals with a single pathogenic variant have heterozygous FH (HeFH). Biallelic pathogenic variants cause homozygous FH (HoFH…

…more than one pathophysiological pathway, combinations generally lower blood pressure more effectively than simply increasing the dose of a single drug. They may also permit…

…death. Papillary muscle rupture Papillary muscle rupture causes abrupt severe MR. Its typical presentation is: Sudden severe dyspnoea. Acute pulmonary oedema. Hypotension. Progressive heart failure…

…pre existing symptoms to the medication. No single diagnostic test can distinguish a pharmacological SAMS effect from a nocebo response. Predisposing factors The likelihood of…

…without an elevation in cardiac troponin. The underlying pathological mechanism is not restricted to a single lesion or process. Although Type 1 MI and acute…

…More than one mechanism may operate simultaneously. Some acute coronary events occur without an identifiable culprit thrombus. NSTE ACS generally reflects an imbalance between myocardial…

…rescue, and security guards) in BLS is key to improving outcomes in OHCA and may be the single strongest factor driving improvement in survival rates…

…line over time (the x axis displays time). Since M mode only analyzes a single ultrasound line, its temporal and axial resolution is very high…

…Definition and staging according to KDIGO Acute kidney injury is present when at least one of the following criteria is met [1]: A rise in…

…a single apparently reassuring measurement. Finding Moderate attack Acute severe attack Life threatening attack : : : : Speech Full sentences Cannot complete a sentence in one breath Single…

…is a clinical diagnosis. Treat as anaphylaxis in any of the following: 1. Acute onset of skin or mucosal symptoms , for example generalised urticaria, itching…

…to three times daily Pivmecillinam Dosed independently of renal function for a single course of treatment Trimethoprim 160 mg twice daily 160 mg twice daily…

…that can be cured on the spot, in three minutes, without drugs . The diagnosis rests on the history, a positive Dix–Hallpike test and the…

…can precipitate ventricular fibrillation, and cardioversion of fibrillation of unknown duration without anticoagulation can cause a stroke hours to weeks later. Everything else in the…

…including oral step down or gentamicin 4.5 mg/kg IV as a single dose Urosepsis with complicating factors cefotaxime 1 g × 3 IV 10…

…with correction doses alone according to the glucose value, without basal insulin (a so called sliding scale), gives poorer control and is not recommended as…

…central venous catheter. 4. Take samples for blood grouping and cross matching before transfusion if this can be done without delay. 5. Start active warming…

…and an ECG all come before complete identification of the substance. Treatment of acute poisoning consists of four parallel components: supportive treatment, a targeted antidote…

…This model was developed using a single center longitudinal cohort and subsequently validated with an independent cohort of 1,689 patients from the International LQTS…

…This model was developed using a single center longitudinal cohort and subsequently validated with an independent cohort of 1,689 patients from the International LQTS…

…its major complications—including myocardial infarction, unstable angina and stroke—may occur abruptly and without preceding warning. Initiation and progression of the fatty streak The…

…A history of increasing frequency of hospitalizations and visits for heart failure without disease recognition in the 3 years preceding diagnosis is also a notable…

…investigations. The emergency differential also reflects distinct mechanisms of acute cardiopulmonary disease: Pulmonary embolism and spontaneous pneumothorax may produce abrupt chest pain and respiratory distress…

…a period of DAPT. The therapeutic objective is to reduce coronary thrombotic events without exposing the patient to disproportionate bleeding risk. Shortening treatment may reduce…

…and pulmonary pressures that contributes to exertional breathlessness and reduced exercise capacity. Multiorgan and comorbidity driven disease HFpEF is heterogeneous rather than a single pathophysiologic…

…may influence management. A single measurement is generally sufficient because Lp(a) is genetically determined and does not fluctuate substantially over the lifetime. A repeat…

…but symptom characteristics and clinical judgement must be incorporated. In symptomatic individuals without known CAD, newer clinical prediction algorithms are preferred over older approaches based…

…have approximately twice the five year survival of those who continue. After acute coronary syndrome, tobacco abstinence has been associated with reductions in reinfarction of…

…T wave inversions, without simultaneous ST segment deviation, indicate acute (ongoing) myocardial ischemia. T wave inversions without simultaneous ST segment deviation are not ischemic! However…

…05 to 0.1 mg/kg. Maximum single dose: 0.3 mg/kg Body weight 50 kg: Adult dosage. Adverse effects Adverse effects typically persist…