…For obvious reasons, more complex defects are typically diagnosed earlier. Defects resulting in reduced oxygen saturation are generally detected with neonatal pulse oximetry (POX) screening…

…Systematic screening of the general population for cardiovascular risk factors has not been shown to improve cardiovascular outcomes, although opportunistic assessment during clinical encounters improves…

…schizoaffective disorder, HIV infection or other circumstances that may affect cessation or treatment monitoring. Single question screening can identify unhealthy drug use requiring counselling regarding…

…nurses, paramedics and physician assistants who rely on such books will realize their shortcomings at their first encounter with an ECG in reality. Books that…

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

…times between dense structures ( i.e structures with high echogenicity). For each reflection, a portion of the sound waves return to the transducer and produce…

…The reasons for this are explained below. The normal P wave contour on ECG The normal P wave (Figure 1, upper panel) is typically smooth…

…Synonyms for AVNRT Atrioventricular nodal reentrant tachycardia Atrioventricular nodal reentry tachycardia Atrioventricular nodal reentrant tachyarrhythmia Atrioventricular nodal reentry tachyarrhythmia Some textbooks use the term "node…

Arrhythmias and arrhythmology ECG Mechanisms of cardiac arrhythmias: from automaticity to re entry This section introduces the most common arrhythmias encountered in clinical practice, beginning…

…Pressure (CVP) This equation illustrates that MAP is determined by the volume of blood the heart pumps and the resistance encountered in the systemic circulation…

…ms Upper limit 440–460 ms 430–450 ms 450–470 ms Prolonged 460 ms 450 ms 470 ms Table 1 . Reference intervals for QTc…

…myocardial injury, demonstrated by a rising and/or falling troponin pattern with at least one value above the assay specific 99th percentile upper reference limit;…

…However, most clinicians who encounter patients with pacemakers only have access to conventional surface ECGs. Being able to assess pacemaker function and perform troubleshooting should…

…vibrations propagate in the form of a sound wave. If the sound waves encounter a new medium, some sound waves will be reflected while others…

…refractory. In this case ( Figure 1 ) it encounters a refractory right bundle branch and therefore the impulse is conducted with right bundle branch block morphology…

…second half is a reflection of left atrial depolarization. This is shown in Figure 3 (upper panel). Recall that the P wave in V1 is…