Assuming we have a good generating use value, it's now time to consider how it takes to make that good. Let's assume the shoes from above are tremendous for hiking, rugged wear, and waterproof protection. This means the shoes may require experienced labor to craft, specifically-treated raw materials for its production, and premium quality control for consumer safety.

In this example, all of the variables mentioned above represent different cost variables with different values. A consumer may value the shoes at $50/pair; if the company determines its cost value is $75/pair, the company must assess how to rebalance the equation. Alternatively, charging a customer prices too high will likely yield negative cost value.

Question 121 Can you explain why a decrease in serum lipid levels follows an acute myocardial infarction (MI)? For how long does this decrease last and how is it known whether the patient has hyperlipidaemia in such a case?

Question 122 In patients with myocardial infarction, why is aspirin to be taken chewed, and not by any other method?

Question 123 Must beta-blockers prescribed for hypertension be stopped if the heart rate falls below 60 beats per minute?

Question 124 How can aspirin resistance in patients with recurrent ischaemic stroke be assessed; is the clotting time a factor? Does the substitution of aspirin with clopidogrel solve this problem?Cardiovascular disease 13 133

Question 125 In a patient with heart failure and atrial fibrillation on warfarin who experiences frequent transient ischaemic attacks, will the patient benefit from having aspirin prescribed?

Question 126 Is there a role for anticoagulation in inoperable carotid stenosis 70%?

Question 127 What is the upper limit of serum creatinine reflecting renal damage from hypertension above which thiazides should not be prescribed?

Question 128 a. How is blood pressure measured? b. Where should both cuff and stethoscope be placed in cases where the patient is suspected of having coarctation of the aorta?

Question 1 As a third-year medical student in Russia I am researching 'the role of proteolytic enzymes and their inhibitors in lung pathology'. Can you explain how proteolytic enzymes function in the normal lung?

Question 2 Bronchiectasis is given as one of the causes of bronchial breath sounds. This is difficult to comprehend. Could you explain the mechanism of bronchial breath sounds more clearly?