Mike's final

PPV decreases mesenteric blood flow and may contribute to gastric mucosal ischemia. The last change contributes to which of the following?

Liver metastes

Tracheomalasia

Gastric ulcers

Increased portal blood flow

Assesment of a mechanically ventilated patient reveals accessory muscles and a rr of twenty six. The mode is cpap with five and an fio2 of forty percent. What should you do?

Return the patient to full ventilatory support

Add pressure support to cpap

Increase cpap to 8

Deflate the cuff to the et tube

Preservation of spontaneous breathing during mechanical ventilation favors the distribution of gas where?

Peribronchial area

Upper airway

Lung periphery

Central airways

Lung injury by opening and closing of alveoli is called?

Atelectrauma

Biotrauma

Barotrauma

Volutrauma

Which of the following is not a side effect of o2?

Oxygen toxicity

Absorption atelectasis

Subq emphysema

Depression of ventilation

When should iatrogenic hyperventilation be considered?

Acute neurologic deterioration with increased intracranial pressure

Acute head injuries with increased intracranial pressure

Severe tbi

Initial treatment for increased icp

A bacterial infection would be suspicious if a patient had an increase in?

Neutrophils

Basophils

Monocytes

Eosinophils

Which respiratory diseases should be suspected if a patient had elevated eosinophil count?

Pneumonia

Asthma

Chf

Epiglottitis

Why would a heart rate in excess of 180 result in a decrease in CO?

Diastolic time becomes shorter

Sinoatrial conduction slows down high heart rate

Blood volume in ventricles is normal but ejection fraction decreases

Systolic time becomes too short to allow adequate ventricular filling

Mitral valve does what?

Prevents atrial backflow during ventricle contraction

Seperates the right atrium and left atrium

Seperates left and right atrium

Seperates right ventricle and pulm artery

What is the ability of mycoardial tissue to propagate electrical impulses?

Automaticity

Conductivity

Contractility

Excitibility

What is the primary pacemaker in the heart?

Av node

Bundle branches

Sa node

Perkinje fibers

The QRS complex on ekg represents?

Atrial depolarization

Ventricle polarization

Myocardial ischemia

Ventricle repolarization

What is represented by the p wave of ECG tracing?

Depolarization of atria

Repolarization of atria

Repolarization of ventricles

Depolarization of ventricles

A patient who has atrial fibrilation is at risk for which of the following?

Copd

Pneumothorax

Pleural effuision

Pulmonary embolism

A normal pr interval is?

Less than .2 seconds

Greater than .2

Less than .12 seconds

Greater than .12 seconds

What are the squiggly lines between qrs intervals indicative of?

Normal

Brady

Multiple pvc

Afib

All of the following would increase ventilatory demand except?

Severe hypoxemia

Pulmonary infarction

Increased compliance

Bronchospasm

An alert patient has been receiving simv at the rate of 8/min and vt of 600 ml. Stable vital signs and good abg at 45 percent o2. What would you do?

Increase pressure sensitivity

Decrease mandatory rate to 6

Increase fio2 to 60

Decrease vt to 500

An alert patient is receiving vent suport with vc-simv has increase wob you try decreasing the mandatory rate to 6. In order to aid in the weaning process what would you do?

Apply low level of ps

Apply high level of inspiratory pressure

Increase mandatory vt

Decrease mandatory vt

What does plat need to be in order to avoid VILI?

Less than 20

Less than 30

Less than 40

Less than 50

Mike's final

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