…look for an underlying infection Swallowing Keep the patient nil by mouth until swallowing has been assessed The plasma glucose is normally the only test…

…human body, cardiac myocytes use ATP (adenosine triphosphate) as the primary energy source. ATP is produced by metabolizing carbohydrates (glucose), fats or proteins, whichever is…

…imaging (MPI) with single photon emission computed tomography (SPECT) or positron emission tomography (PET) is a radionuclide based method for assessing regional myocardial blood flow…

…arrhythmia. 4. Take a full blood count, electrolytes, creatinine, glucose, high sensitivity troponin and, where needed, coagulation tests. Blood sampling must not delay reperfusion. 5…

…Take a full blood count with a differential, CRP, creatinine, electrolytes, liver function tests, glucose and lactate. Add a blood gas, coagulation tests and other…

…mmol sodium bicarbonate per mL) for bolus and infusion, and glucose 50 mg/mL as carrier solution according to local protocol. Potassium chloride for infusion…

…blood and urine can be saved early for later targeted analysis. Initial monitoring and investigations Investigation Comment : : Plasma glucose Taken immediately and repeated in impaired…

…glucose loss in approximately a 1:1 stoichiometric relationship. The resulting glucosuria and natriuresis reduce proximal tubular workload, contract plasma volume and modestly lower blood…

…patient. Continuous glucose monitoring reflects interstitial glucose and lags behind the blood glucose during rapid changes. Pressure on the sensor, for example during sleep, can…

…insulin resistance, dyslipidaemia, elevated blood pressure and impaired glucose regulation. Diagnosis is based on the coexistence of defined clinical and laboratory components; the diagnostic criteria…

…are revolutionizing public health strategies, transcending their original roles as glucose lowering agents to become essential tools for cardiovascular risk reduction, offering profound benefits in…

…joint. Known hypersensitivity to the preparations. Relative: Poorly controlled diabetes — expect a raised blood glucose for 2–5 days. Suspected or known tendon rupture. No…

…be adequately inferred from changes in a single intermediate marker such as cholesterol. Dietary composition may influence blood pressure, glucose–insulin homeostasis, lipids and apolipoproteins…

…or is there approaching, an indication for dialysis? AKI occurs in about one fifth of adults during a hospital episode in international studies and is…

…A venous blood gas is generally sufficient for the assessment of pH and bicarbonate. An arterial blood gas is needed mainly when concomitant respiratory failure…

…pulse Heart auscultation Blood pressure ECG monitoring D Disability AVPU: Alert Voice responsive Pain responsive Unresponsive Limb movements Pupillary light reflexes Blood glucose E Exposure…

…1 hour and follow the plasma glucose closely for at least 6 hours after insulin. 7. Contact nephrology early in anuria, in a dialysis patient…

…minutes, or repeated generalised tonic clonic seizures without the patient regaining consciousness between them. Five minutes is the practical threshold for treatment, known as t1…

…Five modifiable factors—systolic blood pressure, non HDL cholesterol, diabetes, body mass index, and current smoking—account for more than half of the population attributable…

…a sterile tube and blood culture bottles (aerobic and anaerobic) for culture, and a fluoride tube for glucose and lactate. For injection: the corticosteroid drawn…

…failure. A peripheral venous blood gas is easier to obtain and can often be used for an initial assessment of pH and the metabolic component…

…by home measurement or 24 hour recording — the thresholds for which are lower than for office measurement. Classification of office blood pressure Category Systolic Diastolic : : :…

…each time Always, once per patient if no valid result exists Type and screen (BAS test) Blood group confirmation and antibody screening. If the screen…

Cardiology Clinical medicine Definition and Clinical Context Blood pressure management in older adults must account for chronological age, biological age, frailty, multimorbidity, cognitive status, functional…

…dialysis fistula in both arms, an arm circumference too large for the available cuffs, and in a patient who does not tolerate repeated compression (for…

…Conversely, a rapid rise in blood pressure from a previously low level can cause organ damage at lower values, for example in pregnancy, acute glomerular…

…For example, if the perceived exertion is 12, then 12 x 10 = 120; so the heart rate should be about 120 beats per minute…

…regions with reduced blood flow. Radiotracers for SPECT Technetium 99m (Sestamibi or Tetrofosmin): With a six hour half life allowing high doses for better image…

…Reference values for coronary blood flow Normal coronary blood flow at rest: 0.6 to 1.3 mL/min/g of myocardial tissue During hyperemia…

…immediate blood pressure lowering treatment is required. Patients with suggestive symptoms, signs or a medical history indicating possible secondary hypertension should undergo appropriate screening for…

Cardiology Emergency medicine Definition and Pathophysiology A hypertensive emergency is severe blood pressure elevation accompanied by acute hypertension mediated target organ damage (HMOD). The European…

…because it can increase blood pressure and may affect interpretation of the clinical picture. A 24 hour urine collection for electrolytes can be used to…

…Haemodynamic measurements become interpretable only when related to one another. A low blood pressure may be due to low flow, low vascular tone or both…

…that the aortic valve leaks during diastole, such that blood regurgitates back from the aorta into the left ventricle. This results in volume overload in…

CPR Hypoxia and asphyxiation Hypoxia refers to a reduced partial pressure of oxygen in the blood. Asphyxia is characterized by insufficient ventilation, leading to hypoxia…

…volumes, and pressure conditions in the heart. These techniques allow for the calculation of all clinically relevant hemodynamic parameters, with few exceptions. Prior to the…

…test gives insufficient information, a longer one is limited by local muscle fatigue rather than by the heart. 2. Pedalling rate 50–70 revolutions per…

…nitroglycerin regularly may have developed tolerance and require higher doses, alternatively nitroprusside to achieve desirable blood pressure lowring effect. Drug Nitroglycerin Brand names Gonitro ®…

…Pulmonary hypertension. Blood pressure control. Mechanism of action Nitroprusside provides nitric oxide (NO) that induces vasodilatation of both arterioles and veins via generation of cyclic…

…crisis. Mechanism of action Phentolamine is a non selective alpha adrenergic blocker. Phentolamine reduces blood pressure while increasing catecholamine activity. Effects Primarily causes afterload reduction…

…40% or has declined from at least 50%. This distinction is clinically important because the strongest evidence for the four pillar disease modifying strategy applies…

…failure (HF) is a clinical syndrome in which the heart cannot deliver blood at a rate appropriate to tissue requirements unless filling pressures are elevated…

…a distinct disease. It identifies patients whose blood pressure remains uncontrolled despite intensive antihypertensive treatment and who therefore require assessment for pseudo resistance, secondary hypertension…

…and infarction Definition and conceptual framework Acute coronary occlusion is the abrupt or progressive reduction of coronary blood flow sufficient to produce myocardial ischaemia and…

Echocardiography Tissue Doppler (Tissue Velocity Imaging) Previous chapters on Doppler imaging have all focused on measurements of blood flow. However, the Doppler effect can also…

…risk of hypercapnia and a normal blood gas Usually 94 to 98 percent An individually documented target prescription, for example in chronic hypercapnia Follow the…

…criteria for intermediate care or intensive care. Time course after the last intake The times given are approximate. Symptoms can begin before the blood alcohol…

…without delay, in any of the following: A systolic blood pressure < 90 mmHg caused by the arrhythmia. Ongoing myocardial ischaemia with chest pain and…

…allows frequent blood pressure measurement and continuous monitoring. An arterial line is often appropriate when very rapid or precise control is required, for example in…

…around 1,500 mL or more with continuing bleeding, or a smaller measured blood loss if there is physiological compromise. Do not wait for hypotension…

…for Shunt Fraction Calculation Stroke Volume (SV) Calculations : Aortic SV (Systemic flow): [ \text{Aortic SV} = 0.785 \times (\text{LVOT diameter})^2 \times \text…

…required to up to 900 μg/day. Transdermal (one patch lasts for a week): • Catapress TTS 1 (0.1 mg/24hrs). • Catapress TTS 2 …

…an angiotensin converting enzyme (ACE) inhibitor. Enalaprilat lowers blood pressure by inhibiting ACE. Effects • The hypotensive effect of enalaprilat depends on plasma volume and plasma…

…beta adrenergic receptor blocker. • Esmolol lowers blood pressure immediately (within 1 minute) • Esmolol may also be used to control supraventricular tachycardia (rate control). • Esmolol may…

…Effects Dopamine 1 receptor agonists lower systemic blood pressure and increase renal perfusion. Time to onset of action 50 to 10 minutes Duration of action…

…provided for use in patients with hypertensive emergency (also referred to as hypertensive crisis or malignant hypertension ). Hypertensive emergency is defined as significantly elevated blood…

…the formula: MAP ≈ Diastolic Blood Pressure (DBP) + 1/3 × (Systolic Blood Pressure [SBP] – DBP) This formula accounts for the longer duration of diastole compared to…

…blocker. Effects Lowers blood pressure, reduces heart rate, myocardial oxygen consumption and myocardial contractility. Less pronounced blood pressure lowering effect than esmolol and labetalol. Time…

…ischaemia (ALI) is an abrupt reduction in arterial perfusion of an upper or lower limb that causes tissue metabolic requirements to exceed available blood flow…

…In acute PE, obstruction of pulmonary blood flow increases RV pressure load and may impair RV filling and forward output. The resulting syndrome may progress…