…for every 10,000 apparently healthy newborn infants, around six will have critical CHD, and the pulse oximetry test will correctly identify five of these…

…differential diagnoses for each condition. Moreover, most books included very few real world examples of the conditions, or provided too few tests to result in…

…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…

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

…any limb lead. Reference values for the P wave The negative deflection of biphasic (diphasic) P waves is generally <1 mm deep. P wave duration…

…and may reduce cardiovascular risk within several years, although risk may remain higher than that of never smokers for a prolonged period. In heavy smokers…

…or in patients with underlying structural heart disease, the arrhythmia may result in symptoms indicative of reduced cardiac output, such as pre syncope or syncope…

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…

…bradycardia and tachycardia. Fridericia’s and Framingham formulas are often preferred in scenarios where a broader range of heart rates is encountered, as they may…

…approximately 20–50%. Their greater analytical sensitivity improves diagnostic accuracy and negative predictive value in patients with suspected acute coronary syndrome (ACS). Cardiac troponin is…

…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…

…If the left atrium encounters increased resistance (e.g due to mitral valve stenosis) it becomes enlarged (hypertrophy) which amplifies its contribution to the P…