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Exam 6: Microbial Nutrition and Growth

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Question 21

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Please read the clinical scenario, and then answer the question that follow to become familiar with the traditional NCLEX question format. A 24-year-old male arrives at the emergency department via air transport after sustaining a fall while rock climbing. The patient is minimally responsive with sluggishly reactive pupils upon arrival. He is requiring support with mechanical ventilation. A CT scan reveals multiple head bleeds and intracranial swelling. The patient has obvious fractures of his bilateral upper extremities and right leg. The patient is rushed to surgery with the plan to relieve the pressure of the intracranial swelling. -The physician orders administration of an intravenous osmotic diuretic as the patient is en route to surgery.As the RN,you are familiar with the action of the drug,which increases the osmolarity of the blood.Which of the following do you anticipate as the therapeutic response to the administration of this medication?

A) decreased extravascular volume and increased intravascular volume
B) decreased extravascular volume and decreased intravascular volume
C) increased extravascular volume and increased intravascular volume
D) increased extravascular volume and decreased intravascular volume

E) None of the above
F) All of the above

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Question 22

Multiple Choice

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An organism that can exist in both oxygen and oxygenless environments is a(n)

A) aerobe.
B) obligate aerobe.
C) facultative anaerobe.
D) microaerophile.
E) obligate anaerobe.

F) B) and C)
G) None of the above

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Question 23

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Cultures of a bacterial species were incubated on the shelf of a refrigerator,out on a lab bench top,on the shelf of a 37 ^$\circ$ C incubator,and on the shelf of a 50 ^$\circ$ C incubator.After incubation,there was no growth at 37 ^$\circ$ C and 50 ^$\circ$ C,very slight growth out on the bench top,and abundant growth at refrigeration.What term could be used for this species?

Please read the clinical scenario, and then answer the question that follow to become familiar with the traditional NCLEX question format. The hospital infectious disease team is involved with the study of a healthcare-associated infection that has spread to 10% of inpatients. The infected patients are exhibiting symptoms of severe abdominal cramping, diarrhea, nausea, and vomiting. As the infectious disease RN, you provide education to staff regarding the pattern of bacterial growth and infection control. -The period of growth between inoculation and when the cells finally adjust to their new environment and begin growth at their maximum rate is called the

A microorganism that does not have catalase or superoxide dismutase would find it difficult to live in an environment with

Phosphorus is one of the major elements needed in larger quantities by microorganisms.

The movement of molecules from an area of high concentration to an area of lower concentration is called

Lithoautotrophs use inorganic nutrients for carbon and energy sources.

Facilitated diffusion and active transport require a carrier protein to mediate the movement across the plasma membrane.

Obligate saprobes can adapt to a living host.

The time that it takes for a freshly inoculated agar culture to develop visible colonies is principally governed by the generation time of the inoculated species.

What type of media is used to demonstrate oxygen requirements of microbes?

Most microorganisms on earth can only live and survive in habitats that are similar to human body conditions.

Bacteria living in a freshwater stream that are moved to salty seawater would

Binary fission results in four daughter cells from one parent cell.

Microorganisms require small quantities of this nutrient for enzyme function and maintenance of protein structure:

When it is important to count the number of cells,determine cell size,and differentiate between dead and live cells,a ___ is used.

Saprobes do not need a carbon source for growth and metabolism.

Please read the clinical scenario, and then answer the question that follow to become familiar with the traditional NCLEX question format. The hospital infectious disease team is involved with the study of a healthcare-associated infection that has spread to 10% of inpatients. The infected patients are exhibiting symptoms of severe abdominal cramping, diarrhea, nausea, and vomiting. As the infectious disease RN, you provide education to staff regarding the pattern of bacterial growth and infection control. -The most rapid increase in bacterial growth occurs during which of the following stages?

The movement of substances from higher to lower concentration across a semipermeable membrane that must have a specific protein carrier but no energy expenditure is called