Nokea
The nurse is caring for a client with an abscess on the back. The nurse observes purulent drainage coming from the abscess. What type of specimen does the nurse anticipate the physician will order to determine the type of bacteria present in the exudate?
- A. A sensitivity test
- B. Test for ova and parasites
- C. White blood cell (WBC) count
- D. A culture
Correct Answer: D
Rationale: A culture identifies bacteria in a specimen taken from a person with symptoms of an infection. The source of the specimen may be body fluids or wastes, such as blood, sputum, urine, or feces, or the purulent exudate, collection of pus, from an open wound. A test for ova and parasites is a stool specimen that is examined for evidence of any forms in the infecting microorganism's life cycle. A WBC count may determine that infection is present in the body but does not isolate the bacteria. A sensitivity test is done to determine which antibiotic inhibits the growth of a nonviral microorganism and will be most effective in treating the infection.
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A client comes to the clinic and informs of having a 'painful area under my armpit.' The nurse observes a 2-cm raised area that is erythremic and has a white substance inside of it. What does the nurse suspect the client may be experiencing?
- A. A lesion
- B. An abscess
- C. A fluid-filled vesicle
- D. A cancerous tumor
Correct Answer: B
Rationale: To prevent the spread of pathogens to adjacent tissues, a fibrin barrier forms around the injured area. Inside the barrier, a thick, white exudate (pus) accumulates. This collection of pus is called an abscess, which may break through the skin and drain or continue to enlarge internally. A lesion would not be filled with pus, nor would a cancerous tumor. A fluid-filled vesicle is associated with a viral type illness.
The nurse is teaching a health class in the local public health center. What instructions should the nurse provide as the single most important measure to prevent the spread of infection?
- A. Minimal social contact
- B. Regular immunizations
- C. Thorough handwashing
- D. Sufficient food intake
Correct Answer: C
Rationale: Hand hygiene remains the single most important measure to prevent the spread of infection. It reduces the number of transient and resident microorganisms. Sufficient food intake helps restore biologic defense mechanisms but does not prevent spread of infections. Although minimal social contact and regular immunizations may help prevent the spread of infection, especially community-acquired infections, these are not practical measures.
A nurse on the unit sustains a needlestick injury while caring for a client whose infectious status is unknown. What would be the best course of action for the nurse to follow?
- A. Avoid notifying the supervisor of the injury until the client's infectious status is confirmed.
- B. Avoid revealing the identity of the client or source of blood.
- C. Be tested for disease antibodies at appropriate intervals.
- D. Document the injury in writing after the client's infectious status is confirmed.
Correct Answer: C
Rationale: If a needlestick injury has occurred, the nurse should be tested for disease antibodies immediately and at appropriate intervals thereafter. The nurse should document the injury in writing immediately and should not wait until the client's infectious status is confirmed. The nurse should also notify the supervisor of the injury immediately and identify the person or source of blood, if possible.
A client visits the clinic reporting a circular rash on the upper right arm. The rash is diagnosed as tinea corporis. For what type of infection does the nurse anticipate the client will be treated?
- A. Rickettsiae
- B. Protozoans
- C. Mycoplasma
- D. Fungus
Correct Answer: D
Rationale: One type of fungal infection is superficial (dermatophytoses), which affect the skin, hair, and nails; examples include tinea corporis, or ringworm, and tinea pedis, also known as athlete's foot. Rickettsiae, protozoans, and mycoplasma have different characteristics and transmission than fungus.
A client has received a diagnosis of Lyme disease. What does the nurse understand about the transmission of infection resulting in this disease?
- A. The disease is spread by a prion.
- B. The disease is spread by single-celled fungi-like microorganisms
- C. The disease is spread by helminths
- D. The disease is spread by arthropods.
Correct Answer: D
Rationale: Example of arthropods includes fleas, ticks, lice, mosquitoes, and mites. Some rickettsial diseases that are spread by arthropods include Lyme disease. Prions may mutate and can be formed by genetic predisposition or acquired by transmission between the same or similar infected animal species and are not the same as arthropods. The disease is not spread by single-celled fungi-like microorganisms or helminths.