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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.

Optional up to 2 points of extra credit: This is a “choose your own question” question! Please think about any single topic from the chapters covered on this test: this can be something you studied for that wasn’t covered, or something you found especially interesting, or anything else you want from this content. Name the topic and explain it fully here. Write at least a full paragraph (minimum 4-5 sentences; no bullet points). This is your chance to demonstrate good knowledge of a single topic from these chapters. Please do not just list names of multiple topics, or just tell me you found [name of topic] to be really interesting. You may tell me [name of topic] was really interesting, but you must demonstrate to me that you learned about and understand the topic by explaining to me how it works! Relax, and please don’t stress – this is your chance to choose your own topic/question and show me you learned about it by telling me about it – i.e., this is meant to be a very gentle last question on this test! 🙂 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.

Following from the previous question about the single-celled microorganism, if each cell possesses a cell wall made from peptidoglycans, you could be confident you have a ______. 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.

33. A 35% Blood Loss Leading to  inadequate oxygenation  is known as     a. Circulatory Shock  (Ischemia)     b. Anoxia     c. Stenosis     d. Infarction

49.When  Enzymes from the Extrinsic and Intrinsic pathway intersect they activate the following Tissue Factor _______       a. TF III       b. TF VIII       c. TF X