Match the following structures of the heart with their corresponding functions:

If a patient breathes at a volume of 500 mls for 16 breaths at an I:E ratio of 1:3 during a 60 second period, his calculated minute ventilation would be ________.

The adequacy of alveolar ventilation is indicated by arterial

You are asked to do a portable RUQ ultrasound on a patient in the ICU. The ultrasound demonstrates small, linear echogenicities throughout the periphery of the liver. What is the most likely explanation for this finding? 

The inability to breathe except in the upright position is known as:

A 50-year-old female presents to the clinic with complaints of intermittent palpitations that have been occurring for the past month. She describes the palpitations as a “fluttering” or “racing” sensation in her chest, lasting for 1-2 minutes at a time, occurring primarily at rest or during times of increased stress. She denies chest pain, dizziness, or shortness of breath. Her medical history includes hypertension, obesity, and a 15-pack-year smoking history. She takes an ACE inhibitor for her hypertension and uses over-the-counter caffeine-containing products regularly. Her family history is significant for heart disease, with her father having a myocardial infarction at age 55. On examination, her blood pressure is 135/85 mmHg, heart rate is 78 bpm, and her physical exam is otherwise unremarkable. Which is most likely contributing to this patient’s palpitations?

Classify the following Arterial Blood Gas: pH = 7.20 PaCO2 = 60 mmHg PaO2 = 75 mmHg HCO3 = 25 mEq/L SaO2 = 90 %

Which of the following has the most powerful effect on the central chemoreceptors?

According to Fick’s law, the rate of gas diffusion is:

When the blood pH decreases, the oxygen dissociation curve shifts to the: