FCS1-0989

Which of the following is responsible for the maximum increase in total peripheral resistance on sympathetic stimulation?

FCS1-0990

If the blood flow is constant, oxygen extraction by tissues will show the greatest decrease due to which of the following interventions?

FCS1-0965

Calculate the stroke volume in an adult male with the following parameters:

Heart rate 70 beats/min

Arterial [O2] 0.24 ml O2/min

Venous [O2] 0.16 ml O2/mi

Whole body O2 consumption 500 ml/min

Pulmonary diastolic pressure 15 mmHg

Pulmonary systolic pressure 25 mmHg

Wedge pressure 5 mmHg.

FCS1-0966

How much blood can the pulmonary vessels of a 45-year-old healthy man accommodate when he is at rest?

FCS1-0967

A 77-year-old woman’s renal function is tested. The following results were obtained during a 24-h period:

Urine flow rate: 2. 0 ml/min

Urine inulin: 0.5 mg/ml

Plasma inulin: 0.02 mg/ml

Urine urea: 220 mmol/l

Plasma urea: 5 mmol/l.

What is the urea clearance?

FCS1-0968

If a catheter is placed in the main pulmonary artery of a healthy 30-year-old woman, which of the following will be its mean pulmonary arterial pressure?

FCS1-0969

Whilst snorkelling, a 30-year old gentleman has the respiratory rate of 10/min, tidal volume of 550 ml and an effective anatomical dead space of 250 ml. Which of the following will bring about a maximum increase in his alveolar ventilation?

FCS1-0974

Which of the following muscles aid in inspiration?

FCS1-0962

A 49-year-old woman with acute renal failure has a total plasma [Ca2+] = 2. 5 mmol/l and a glomerular filtration rate of 160 l/day. What is the estimated daily filtered load of calcium?