Start by defining RER and explain how and why the resting value is established (think back to bioenergetics). Next, explain how and WHY (again, this requires an understanding of bioenergetics) RER changes as exercise intensity is increased (think VT and RCP). Hints: consider the points where the production of a gas increases drastically and why this occurs. Furthermore, consider that VT is often used to approximate AT. Also keep in mind the endogenous buffering systems.

Based    on    the    plot    you’ve    constructed:1. What    relationship    did    you    find    between    height    and    vital    capacity?2. What    might    be    the    explanation    for    this    relationship?3. How    might    these    changes    in    size    be    explained?4. What    factors    may    be    contributing    to    the    variation    observed

Consider the graph below showing the effect of altitude on ventilation rate in 25 healthy, non-smoking males after different exercise intensities. Ventilation rate / dm³ min-1 601 50- 40- 30- 20- 10- 0+ PREGNALI DOM Sea level 4000 m Key: rest 20% of maximal aerobic power 30% of maximal aerobic power 40% of maximal aerobic power a. Identify the independent and dependent variables. [1] b. Compare and contrast the effect of increasing exercise intensity at sea level and at an altitude of 4000 m. Refer specifically to the graph. [2] C. At 4000m the availability of oxygen is lower than at sea level. Explain why the pattern seen in ventilation rate occurs by referring to external respiration. [2]

a. Follow the increase in NADH concentration by following the increase in absorbance at 340mm.O b. Follow the increase in NADt concentration by following the increase in absorbance at 260nm.c. Follow the decrease in NADH concentration by following the decrease in absorbance at 260nm.d. Follow the increase in NAD* concentration by following the increase in absorbance at 340nm.

When we change altitude, during the next few days, the body responds by adjusting Hb cooperativity. This can be accomplished by changing the concentration of 2,3-BPG in the blood. After moving from a low altitude to a higher altitude, does 2,3,-BPG increase or decrease? Explain how this affects oxygen transport capacity

Scenario: After three days of mechanical ventilation, the client's interdisciplinary healthcare team decides to perform a ventilator weaning trial. After 30 minutes, assessment findings indicate that the client is tolerating the process well. The weaning trial is continued for an additional 90 minutes at which time an ABG is drawn and vital signs are reevaluated. For each assessment finding, use an X to indicate whether the finding is supportive of Extubation or Resuming mechanical ventilation.  Provide a rationale for each choice. Assessment finding Extubation Resuming mechanical ventilation Rationale Ph 7.38         Blood pressure 120/76 mm Hg         SaO2,90%.         PaCO2, 43 mm Hg         PaO2, 48 mm Hg         Heart rate: 120 bpm         HCO3-, 24 mEq/L

- When a person starts exercising, many body parameters change from the original state of rest. The trends in two such parameters are shown in the graph during the initial phase of exercise. High P Low Time since start of exercise P and Q most likely represent: A. P: carbon dioxide level in vein B. P: breathing rate C. P: oxygen level in artery D. P: oxygen level in artery Q: oxygen level in artery. Q: carbon dioxide level in artery. Q: carbon dioxide level in vein. Q: oxygen level in vein.

explain the pathophysiological mechanism of exercise helping to uplift symptoms in COPD patients. and risk factors of pulmonary rehabilitation

Compare the results for blood oxygen concentration to the results for heart rate and breathing rate. Explain how the observed changes of each parameter are interrelated.

A sleep study on a patient shows 110events in an 8hr sleep period. What would this patients apnea hypoxia index be? Is this patients  apnea considered normal, mild, moderate, or severe?