Lindsey Jones J Test Questions With Correct Answers
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Lindsey Jones TMC
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Lindsey Jones TMC
Which of the following can cause inverted T waves on a 12-lead ECG?
A. second degree heart block
B. hypokalemia
C. digitalis toxicity
D. hyperkalemia - Answer C. digitalis toxicity
There are two causes of inverted T waves: cardiac ischemia and digitalis toxicity.
How many portable o...
Lindsey Jones J Test Questions With Correct Answers Which of the following can cause inverted T waves on a 12-lead ECG? A. second degree heart block B. hypokalemia C. digitalis toxicity D. hyperkalemia - Answer C. digitalis toxicity
There are two causes of inverted T waves: cardiac ischemia and digitalis toxicity.
How many portable oxygen E cylinders will be required for a 12-hour car trip with a flow rate of 2 L/min? A. 5 B. 2 C. 3 D. 4 - Answer C. 3
To answer this question you must know that the tank factor for an E cylinder is 0.28. A full E cylinder is 2200 PSI. Therefore 2200x0.28 is equal to 616 L. 616 divided by two is equal to 308 min. A 12 hour car trip is 720 min. Therefore the patient will need three E cylinders of oxygen to go on a 12 hour trip.
An oral pharyngeal airway is measured from the patient's jaw angle to the tip of the chin. After placement, the semi-conscious patient repeatedly pushes the airway out with his tongue. The therapist should A. insert a larger airway. B. replace with a nasal endotracheal tube C. reinsert the oral airway. D. secure the airway with tape. - Answer C. reinsert the oral airway.
It is normal for a patient to reject an oral airway with their tongue. Reinserting the airway is most appropriate.
A respiratory therapist changes from a normal adult ventilator circuit to a heated-wire circuit. Arterial blood gases are as follows:
pH 7.31 PaCO2 48 torr
PaO2 81 torr
HCO3- 24 mEq/L
BE 0 mEq/L
Which of the following changes is most indicated? A. increase inspiratory flow rate B. revert to the normal non-heated wire circuit C. remove 50-100 mL of deadspace between the wye and patient D. add 100 mL of deadspace at the patient-ventilator interface - Answer C. remove 50-100 mL of deadspace between the wye and patient
Removing deadspace is the best option and is the only option that will reduce carbon dioxide. What also makes this appropriate is the fact that CO2 is off target by a very small amount, making a change in deadspace appropriate.
A patient in the emergency room, who is breathing rapidly and deeply, is receiving heated aerosol by mask and large-volume nebulizer with FIO2 set at 1.0 and the flow set at 15 L/min. The therapist notices the aerosol disappears completely with each breath. Pulse oximetry shows an oxygen saturation of 88%. The therapist should recommend A. switch to a non-rebreathing mask at the same flow B. increase flow to 20 L/min C. decrease FIO2 to 0.6 D. a tandem aerosol device - Answer D. a tandem aerosol device
A large volume nebulizer set at 60% with a flow of 15 L/min is producing a total gas flow of 15 L/min. Because this patient is breathing rapidly and deeply and is hypoxic, it is likely that the total flow is not meeting the inspiratory demands of the patient. Because the flow of the large-volume nebulizer may not
be increased significantly due to back pressure the solution for this case is to add another tandem large-
volume nebulizer device, producing a total gas flow of 30 L/min.
A respiratory therapist is assisting in a cardiopulmonary stress testing of a patient. After several increases
in workload by increasing the incline on the treadmill, heart rate is 120/min, blood pressure is 130/95 mmHg and O2 Sat is 97%. Increasing the treadmill further shows no further increase in these values, but the patient appears pale in color. The therapist should recommend A. after two minutes, increase workload B. discontinue the test, document findings C. monitor the patient closely D. decrease workload - Answer B. discontinue the test, document findings
The laboratory results of a sputum culture and sensitivity have returned for a patient who has bilateral bacterial pneumonia. The culture reveals streptococcus, a gram-positive bacteria. The medical records indicates the patient is allergic to penicillin. Which of the following should the respiratory therapist recommend? A. Amoxicillin B. Cephalexine (Keflex) C. Methacillin D. Nafcillin - Answer B. Cephalexine (Keflex)
Normally gram-positive bacteria may be killed by penicillin-type antibiotics. But, because the patient is allergic to penicillin, a suitable drug is cephalexine. Nafcillin and methacillin are suitable antibiotics when a patient is penicillin-resistant but not when they are allergic.
A patient with cystic fibrosis develops rhonchi after 5 minutes of PEP therapy at 20 cm H2O. The respiratory therapist should A. switching to flutter therapy B. discontinue treatment, report to findings to the physician C. begin cool bland aerosol therapy D. continue the therapy - Answer D. continue the therapy
The development of rhonchi in response to PEP therapy is considered to be a good outcome for the therapy. The purpose of the therapy is to mobilize and promote expectoration of secretions. The development of rhonchi is an indication that secretions are moving from small and middle-sized airways to the larger size airways where they may be naturally expectorated or suctioned. The therapy should be continued because it is effective.
Excessive bubbling is noted in the water seal chamber of a chest tube drainage system. Which of the following could be the cause? A. water seal fluid level is too high B. water seal fluid level is too low C. wall pressure is too low D. leak in the drainage tubing coming from the patient - Answer D. leak in the drainage tubing coming from the patient
A leak in the drainage tubing coming from a patient's chest will cause the entrainment of additional air into the system which will show up as excessive bubbling in the water-seal compartment. Normally gentle bubbling should be observed. When excessive bubbling is present, a leak most likely exists somewhere between the waterseal compartment and the patient's lung tissue and may be caused from a perforation or hole in the lung tissue.
Which of the following would result in an increase in anatomical airway resistance?
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