FCA1-0386
Calcium homeostasis is regulated by parathormone (PTH). Which of the following PTH actions is most likely to cause calcium to be released from bone?
Archives: FRCA Part 1
FCA1-0387
A 68-year-old man is to be operated. His past history is significant for a stroke, and some residual neurological deficit. The cranial nerves are examined clinically. He is unable to rotate his head to the left side when resistance is applied. Moreover, there is tongue wasting on the right side. There are no unusual sensory signs and symptoms. The most likely reason for these clinical findings is?
FCA1-0378
At 37 weeks’ gestation, a 29-year-old parturient is admitted to the labour ward. Her antenatal period was asymptomatic for her. The haematological values listed below are available: Hb concentration of 100 g/L (115-165), 200×109/L platelets (150-400), MCV 81 fL (80-96). Which of the following is the most likely reason for the problem?
FCA1-0379
With a cervical dilation of 7 cm, a 33-year-old term primigravida is in labour. She is otherwise in good health. She’s been in labour for 14 hours and counting. The cardiotocograph shows late foetal pulse decelerations, and a pH of 7.24 was found in the recent foetal scalp blood sample. Which of the following is true about this patient’s care and management?
FCA1-0380
When an inotrope is given to the body, it has the following effects on the cardiovascular system: The automaticity of the sino-atrial node increases, Lusitropy is accelerated, Dromotropy is increased, Chronotropy is increased, Inotropy increases, There is increased excitability of the conducting system. The most probably mechanism of action of this compound is?
FCA1-0381
Following a physical assault, a 28-year-old man is admitted to the emergency room. A golf club has struck him in the head. There is a large haematoma on the scalp, as well as a bleeding wound. In response to painful stimuli, he opens his eyes and makes deliberate movements. Because of inappropriate responses, a history is impossible to construct, but words can be discerned. Which of the options below best describes his current Glasgow Coma Scale (GCS)?
FCA1-0382
The arterial-venous oxygen (a-vO2) difference is the difference between the oxygen content of arterial blood (CaO2) and mixed-venous blood (CvO2). At rest, which organ has the greatest a-vO2 difference?
FCA1-0374
A 28-year-old woman who is 36 weeks pregnant presented with significant proteinuria and severe headache. On examination, the blood pressure recorded was consistently raised at 190/110. Subsequently, she was admitted to the labour ward as a case of pre-eclampsia. A loading dose of IV magnesium sulphate 4g is given, followed by a 1g/hour infusion. The most suitable parameter to access magnesium toxicity is?
FCA1-0375
A previously fit 26-year-old is undergoing surgery to repair an inguinal hernia. He is breathing on his own, and a supraglottic airway is being maintained via a circle system with air/oxygen and sevoflurane. With a fresh gas flow of 14 L/min, the end-tidal CO2 reading is 8.1 kPa. CO2 pressure is 1.9 kPa. The percentages of oxygen inhaled and exhaled are 38 and 33 percent, respectively. What do you think is the most likely source for these readings?
FCA1-0376
Which of the following ionic changes is associated with the ventricular myocyte action potential’s initial repolarization phase?