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Questions and Answers
What do chemoreceptors primarily detect?
What does the p-wave on an ECG specifically represent?
Which statement best describes Troponin?
How is afterload defined?
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What is a likely manifestation of increased pulmonary interstitial fluid?
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What characterizes atrial fibrillation?
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Which of the following statements about chemoreceptors is true?
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What is the role of Troponin in the cardiovascular system?
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Which group of drugs is most effective in lowering the risk of stroke associated with hypertension?
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Which diagnostic test is considered definitive for diagnosing heart failure?
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What is a significant risk for a patient with hypertension?
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What is the main concern regarding ventricular ectopic beats?
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What is the most common early complication of a myocardial infarction?
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What is the purpose of administering Alteplase (Cathflo Activase) during an acute myocardial infarction?
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Which of the following complications can occur from persistent ventricular ectopic beats?
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What is a critical factor in the prognosis of a patient with myocardial infarction?
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Which of the following clinical manifestations is characteristic of left-sided heart failure?
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What is the primary function of the Circle of Willis?
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Captopril belongs to which class of anti-hypertensive medications?
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What effect does B-type natriuretic peptide (BNP) have on the cardiovascular system?
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Which of the following is the most common complication following a myocardial infarction?
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Which of the following symptoms is NOT typically associated with left-sided heart failure?
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Which option describes a potential adverse effect of the Circle of Willis during a cerebrovascular accident?
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Which of the following reflects a misinterpretation of the function of B-type natriuretic peptide?
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What oxygen saturation level indicates a patient is at risk of complications?
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Which hormone is primarily used for diagnosing heart failure?
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What is one benefit of using Captopril and Bisoprolol in Chronic Heart Failure management?
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Which acronym is used for the diagnosis of a stroke?
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Which of the following is not typically used to clinically diagnose a stroke?
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What is the primary rationale for ordering brain imaging in embolic stroke?
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Which symptom is not indicative of right-brain damage from a stroke?
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Which symptom is associated with left-brain damage from a stroke?
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Which of the following findings indicate that the patient is progressing toward septic shock?
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What stain indicates the identification of Methicillin-resistant staphylococcus aureus (MRSA) in synovial fluid culture?
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Bacterial seeding can lead to which of the following?
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Which of the following is a compensatory response to decreased cardiac output?
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What is a more likely cause for the progression of Atrial Fibrillation?
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Which system directly contributes to the remodeling of the heart leading to arrhythmias?
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Which of the following promotes heart failure through mechanisms associated with Atrial Fibrillation?
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When should oxygen be administered for a person experiencing an acute heart failure stage?
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Study Notes
Chemoreceptors
- Detect changes in arterial oxygen concentration or pH levels.
ECG
- P-wave represents firing of the sino-atrial node and depolarization of the atrium.
Troponin
- Proteins found in skeletal and cardiac muscle fibres, regulate contractions.
Afterload
- The pressure against which the ventricle ejects blood from the heart.
Pulmonary interstitial fluid
- Increased fluid can manifest as bibasal crackles in the lungs.
Atrial Fibrillation
- Characterized by loss of synchrony in the electrical activity between atria and ventricles, quivering of the upper chambers at a rate of 300-600 times a minute
Left-sided heart failure
- Clinical manifestations include cyanosis, cough and peripheral oedema, orthopnoea.
Circle of Willis
- Provides collateral circulation to brain tissue if there is a blockage.
Captopril
- Found in the angiotensin converting-enzyme Inhibitor group of anti-hypertensive medication.
B-type natriuretic peptide (BNP)
- Causes vasodilation, natriuresis and diuresis.
Myocardial Infarction complications
- Most common complication is cardiac dysrhythmia, a rapid or irregular heartbeat.
Anti-hypertensives
- Most effective drug group for lowering the risk of stroke associated with hypertension.
Heart failure diagnosis
- Echocardiogram is used to definitively diagnose heart failure.
Hypertension
- Patients with hypertension have a high risk of stroke and heart attack.
Ventricular ectopic beats
- Can develop into ventricular fibrillation.
Myocardial Infarction complications
- Most common early complication of myocardial infarction is dysrhythmias.
Alteplase (Cathflo Activase)
- Tissue plasminogen activator (tPA) administered to a patient with an acute MI to restore blood flow to the ischaemic myocardium.
Septic shock
- Serum lactate 4 mmol/L, SBP <90 mmHg and BP 150/78 mmHg indicate progression toward septic shock.
Methicillin-resistant staphylococcus aureus (MRSA)
- Identified by a violet crystalline stain in synovial fluid culture.
Bacterial seeding
- Can lead to dilation of synovial vessels causing synovial tissue becoming oedematous.
Compensatory response for decreased cardiac output
- Vasoconstriction and fluid retention.
Progression of Atrial Fibrillation
- Structural and neurohormonal changes in heart failure (reduced/preserved EF) are a likely cause for progression of Atrial Fibrillation.
Heart remodelling
- The Renin-Angiotensin-Aldosterone System (RAAS) directly contributes to the remodelling of the heart leading to arrhythmias.
Atrial Fibrillation and heart failure
- Impaired LV filling decreasing cardiac output by 25%, irregular and/or rapid ventricular conduction leads to LV dysfunction, tachycardia-induced myopathy. All contribute to heart failure.
Oxygen administration for acute HF
- Oxygen should be administered if oxygen saturation is below 95%.
Diagnosis of heart failure
- B-Type Natriuretic Peptide (BNP) is useful for the diagnosis of heart failure.
Long-term management of Chronic Heart Failure
- Captopril & Bisoprolol reduce the risk of HF development, hospitalisation and death, improve survival, are recommended for treatment of patients with HF with reduced ejection fraction.
Stroke diagnosis acronym
- FAST (Face, Arms, Speech, Time).
Stroke diagnosis testing
- Cerebral angiography, cerebral CT, PET scan, MRI are used to clinically diagnose a stroke.
Brain imaging for embolic stroke
- To determine if there is cerebral ischaemia or intracranial haemorrhage.
Right-brain stroke indication
- Speech language deficit is not an indication that the Right-brain has been damaged from a stroke.
Left-brain stroke indication
- Paralysed on the right-hand side is an indication that the Left-brain has been damaged from a stroke.
Ischaemia
- Severe ischaemia for cerebral tissue is indicated by less than 20% blood flow.
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Description
Test your knowledge on important aspects of cardiovascular physiology and pharmacology. The quiz covers topics such as chemoreceptors, ECG interpretation, and the effects of medications like Captopril. Expand your understanding of heart conditions and the vascular system.