Which of the following solutions is used to disinfect a blood spill on a work surface?
Glutaraldehyde
Isopropyl alcohol
Bleach
lodine compounds
The Correct Answer is C
A. Glutaraldehyde: Glutaraldehyde is used for high-level disinfection of medical equipment, not for cleaning blood spills.
B. Isopropyl alcohol: While isopropyl alcohol is used for disinfection, it is not the preferred choice for blood spills due to its lower efficacy against certain pathogens.
C. Bleach: A bleach solution is effective for disinfecting surfaces contaminated with blood, as it is effective against a broad range of pathogens, including bloodborne viruses.
D. Iodine compounds: Iodine is used for antiseptic purposes on skin but is not ideal for disinfecting blood spills on surfaces.
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Correct Answer is A
Explanation
A. Near visual acuity: Hyperopia, or farsightedness, affects the ability to see objects up close. Testing near visual acuity assesses how well a patient can see objects at a close range.
B. Ishihara: The Ishihara test is used for detecting color vision deficiencies, not hyperopia.
C. Snellen chart: The Snellen chart tests distance vision and is more useful for assessing nearsightedness (myopia) rather than farsightedness (hyperopia).
D. Tonometry: Tonometry measures intraocular pressure to assess for glaucoma, not hyperopia.
Correct Answer is D
Explanation
A. Attention line: The attention line directs the letter to a specific person or department and does not serve as a greeting.
B. Inside address: The inside address includes the recipient’s address and is placed before the salutation but does not serve as a greeting.
C. Signature block: The signature block is where the sender signs the letter and provides their name and title, not the greeting.
D. Salutation: The salutation is the part of the letter where the writer greets the recipient, such as “Dear Dr. Smith,”.