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To help prevent aspiration, residents should be in the position when eating.

A resident who is lying flat on his back with his head and shoulders supported by a pillow is in the position.

A resident who has her head and shoulders elevated and is in a semi sitting position (45 to 60 degrees) is in the position.

All of the following are considered therapeutic gases except.

A physician wants a stable FIO2 of 0.5 for a newborn infant with severe hypoxemia. Which of the following systems would you select?

You design an air-entrainment system that mixes air with O2 at a fixed ratio of 0.3:1 (0.3 L air to 1 L O2). About what O2 will this device provide?

A patient receiving 35% O2 through an air-entrainment mask set at 6 L/min input flow becomes tachypneic. Simultaneously, you notice that the SpO2 has fallen from 91% to 87%. (The patient’s inspiratory demand has increased) Which of the following actions would be most appropriate in this situation?

The nurse cares for a client diagnosed with respiratory insufficiency.  Which assessment findings indicate the development of respiratory acidosis?  Select all that apply (3).

You treat the following five cultures of bacteria with penicillin: Bacillus subtilis, E. coli, Mycobacterium tuberculosis, Mycoplasma genitalium, and Staphylococcus aureus. Assume all are “wild type” and have not acquired specific resistance to penicillin (i.e., resistance has not been selected for in any of these strains). Which of these is most likely to survive your treatment with the least harm, i.e., is the most intrinsically resistant to this treatment of penicillin? Copyright 2024 by Dr. Jonathan A. Miller. All rights reserved. Online sharing or distribution is prohibited. For exam use only in BIOL& 260: Microbiology at Edmonds College. Outside help is not allowed.

You correctly perform a Gram stain on a sample of bacteria by following these steps on your dried smear of cells on a glass slide: Addition of a few drops crystal violet for 1 minute; rinse Addition of a few drops Gram’s iodine for 1 minute; rinse Decolorization with alcohol/acetone mixture until clear but fewer than 12 seconds; rinse Addition of a few drops of safrinin for 1 minute; rinse When finished, you observe a mixture of purple and pink rods. Which of the following is the LEAST likely explanation for this outcome? Copyright 2024 by Dr. Jonathan A. Miller. All rights reserved. Online sharing or distribution is prohibited. For exam use only in BIOL& 260: Microbiology at Edmonds College. Outside help is not allowed.