BIO 175 exam 2 Questions and Answers
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A 63-year-old male has been admitted from the ICU with a history of recent brain injury. The
treatment plan involves maintaining high serum sodium levels to prevent swelling in the brain
tissue. Which of the following types of IV fluids would be most appropriate for this patient?
no IV fluids
The bacteria causing the foodborne illness appears to have a short generation time. Which of the
following would most accurately describe the pattern of population growth? exponential
The patient asks the RN to describe the pathophysiology of a urinary tract infection. The RN
describes the process of bacterial urea digestion, releasing ammonium. How does the RN most
accurately describe the resultant pH following bacterial urine decomposition, facilitating growth
of pathogens? Alkaline pH
Bacteria living in a freshwater stream that are moved to salty seawater would shrivel
When whole cells or large molecules in solution are engulfed by a cell, this endocytosis is
specifically termed phagocytosis
,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°C incubator, and on the shelf of a 50°C incubator.
After incubation, there was no growth at 37°C and 50°C, very slight growth out on the bench
top, and abundant growth at refrigeration.
What term could be used for this species? psychrophile
A microorganism that does not have catalase or superoxide dismutase would find it difficult to
live in an environment with oxygen
The patient has a central venous line for administration of IV fluids and medications.
What aseptic techniques can the RN use? Wearing gloves
Sterile dressing change
Cleansing with alcohol swab
, What is the goal of the use of a high-efficiency particulate air (HEPA) filter in the patient's
room? Air decontamination
Which of the following microbes may still be present on sterile surgical instruments?
Prions
What is the most appropriate method of sterilization for metallic surgical instruments?
Pressurized steam
The wound care RN uses hydrogen peroxide in wound cleansing. Which of the following terms
best represents the treatment goal with the application of this chemical agent? Antisepsis
The RN applies a silver-impregnated dressing to the ulcer. What is the rationale for the use of
silver dressings in wound care? Silver possesses antimicrobial activity.
Which of the following would not be killed by standard-concentration hydrogen peroxide?
endospores
Verified by Experts
A 63-year-old male has been admitted from the ICU with a history of recent brain injury. The
treatment plan involves maintaining high serum sodium levels to prevent swelling in the brain
tissue. Which of the following types of IV fluids would be most appropriate for this patient?
no IV fluids
The bacteria causing the foodborne illness appears to have a short generation time. Which of the
following would most accurately describe the pattern of population growth? exponential
The patient asks the RN to describe the pathophysiology of a urinary tract infection. The RN
describes the process of bacterial urea digestion, releasing ammonium. How does the RN most
accurately describe the resultant pH following bacterial urine decomposition, facilitating growth
of pathogens? Alkaline pH
Bacteria living in a freshwater stream that are moved to salty seawater would shrivel
When whole cells or large molecules in solution are engulfed by a cell, this endocytosis is
specifically termed phagocytosis
,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°C incubator, and on the shelf of a 50°C incubator.
After incubation, there was no growth at 37°C and 50°C, very slight growth out on the bench
top, and abundant growth at refrigeration.
What term could be used for this species? psychrophile
A microorganism that does not have catalase or superoxide dismutase would find it difficult to
live in an environment with oxygen
The patient has a central venous line for administration of IV fluids and medications.
What aseptic techniques can the RN use? Wearing gloves
Sterile dressing change
Cleansing with alcohol swab
, What is the goal of the use of a high-efficiency particulate air (HEPA) filter in the patient's
room? Air decontamination
Which of the following microbes may still be present on sterile surgical instruments?
Prions
What is the most appropriate method of sterilization for metallic surgical instruments?
Pressurized steam
The wound care RN uses hydrogen peroxide in wound cleansing. Which of the following terms
best represents the treatment goal with the application of this chemical agent? Antisepsis
The RN applies a silver-impregnated dressing to the ulcer. What is the rationale for the use of
silver dressings in wound care? Silver possesses antimicrobial activity.
Which of the following would not be killed by standard-concentration hydrogen peroxide?
endospores
