Concept explainers
Case summary: A 37-year-old woman met with an accident and is on a volume-cycled mechanical ventilator.
Characters in the case: A 37-year-old woman met with an accident.
Adequate information: The barometric pressure is 745 mm Hg. She was receiving
To determine: The total oxygen delivery, the arterial venous content difference, the intrapulmonary shunting, oxygen consumption, and the oxygen extraction ratio.
Explanation of Solution
Given information:
Cardiac output: 6 L/min
Hb: 11g/dL
With this information,
A)
B)
C)
D)
E)
Therefore it can be concluded that
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Chapter 6 Solutions
Cardiopulmonary Anatomy & Physiology
- If the pressure in the pulmonary artery is 34 mm Hg and the pressure in the left atrium is 9 mm Hg, what is the driving pressure? A. 9 mm Hg B. 17 mm Hg C. 25 mm Hg D. 34 mm Hgarrow_forward1 liter D5 12 NS at 200 mL/hour for 8 hours. Drip factor is 20 gtt/mL What is the drip rate for this IV order? 20 drops/mL Approx. Caution: Do not allow air to be trapped in set Rx only If the IV is started at 1400, when will it be finished using military time? Which IV is dripping closest to the correct rate? (Type the correct rate in the box below the drip chamber you choose)arrow_forwardA provider prescribes magnesium sulfate 0.5 g/mr by continuous IV infusion. Available is magnesium sulfate 4,000 mg in 50 mL of D₂W. Determine how many ml/hr to administer (Round the answer to the nearest whole number)arrow_forward
- A 40yo male presents to the emergency department with the chief complaint of shortness of breath (SOB). His past medical history (MHx) is remarkable for hypertension (HTN) and diabetes mellitus II (DMII). On examination, his oxygen saturation on room air is 87%, blood pressure 160/100 mmHg, and pulse rate is 93/min. His arterial blood gas on room air shows pH 7.44, PCO2 35 mmHg, PO2 55 mmHg. Assume that the RQ is 0.8. Given arterial pO2 and alveolar pO2, the following disease states are plausible... Group of answer choices Hypoxic hypoxia Ischemic/Stagnant hypoxia Histotoxic hypoxia Normal ventilation/perfusionarrow_forwardCASE 1: Uncompensated Acid/Base Imbalance An elderly gentleman is in a coma after suffering a severe stroke. He is in the intensive care unit and has been placed on a ventilator by a respiratory therapist in training. Ventilator Settings: Respiration Rate (RR): 10 breaths/min Tidal Volume (TV): 350 ml/breath After a few hours you check on the patient and find him even more nonresponsive with diminished deep tendon reflexes. Vitals are as follows: RR: 10 breaths/min HR: 110 bpm BP: 135/95 mmHg Weight: 180 lbs Case 1 Question 1: Calculate the Minute Ventilation (MV) of this patient. Is this value normal for a resting individual? (Normal resting MV is 5-6L/min not on a ventilator) How does an individuals anatomical dead space change when they are placed on a ventilator and how does that impact the ventilator settings?arrow_forwardA 40yo male presents to the emergency department with the chief complaint of shortness of breath (SOB). His past medical history (MHx) is remarkable for hypertension (HTN) and diabetes mellitus II (DMII). On examination, his oxygen saturation on room air is 87%, blood pressure 160/100 mmHg, and pulse rate is 93/min. His arterial blood gas on room air shows pH 7.44, PCO2 35 mmHg, PO2 55 mmHg. Assume that the RQ is 0.8. Based on your calculations, what should the arterial blood gas be?arrow_forward
- The patient has a main IV of D5W 1000 mL every 12 hours. The doctor orders Suprax 4 mg/Kg q 12 h po. The dose on hand of Suprax is 100 mg/5 mL. The patient weighs 22 lbs. The drop factor is 10 gtts/mL. What is the flow rate of the IV in mL/hr? 83.3 mL/hr 84 mL/hr 83.0 mL/hr 83 mL/hr 83 L/hrarrow_forwardA 40yo male presents to the emergency department with the chief complaint of shortness of breath (SOB). His past medical history (MHx) is remarkable for hypertension (HTN) and diabetes mellitus II (DMII). On examination, his oxygen saturation on room air is 87%, blood pressure 160/100 mmHg, and pulse rate is 93/min. His arterial blood gas on room air shows pH 7.44, PCO2 35 mmHg, PO2 55 mmHg. Determine the alveolar gas pressure. Assume that the RQ is 0.8. A. 52 B. 22 C. 107 D. 200arrow_forwardThe mean intraluminal pressure in the pulmonary capillaries is A. 5 mm Hg B. 10 mm Hg C. 15 mm Hg D. 20 mm Hgarrow_forward
- Cardiopulmonary Anatomy & PhysiologyBiologyISBN:9781337794909Author:Des Jardins, Terry.Publisher:Cengage Learning,Basic Clinical Lab Competencies for Respiratory C...NursingISBN:9781285244662Author:WhitePublisher:Cengage