Nursing practice questions with comprehensive rationales
NurseDive Free Nursing Practice Question
It's okay to wipe surfaces with bleach solution without wearing gloves.
A. True
B. False
This question is an excerpt from Nurse Dive's nursing test bank - Fa25 biol Microbiology (Hennepin Technical College) proctored exam. Take the full exam now
Full Explanation
False: Wiping without gloves would be unsafe because bleach is a strong chemical that can irritate or damage the skin on direct contact. Handling it without protection increases the risk of burns, rashes, or chemical injury. Gloves should always be worn when using bleach solutions to prevent skin contact and chemical harm. Protective equipment ensures safe cleaning practices in laboratory and healthcare settings.
Similar Questions
A microbe that doesn't cause disease or is not a risk to the environment can be handled at which biosafety level?
A. Biosafety Level 1
Biosafety Level 1: BSL-1 is designated for microbes that pose minimal risk to humans and the environment. These organisms are non-pathogenic and can be safely handled with standard laboratory practices.
B. Biosafety Level 2
Biosafety Level 2: BSL-2 is used for organisms that pose moderate risk and may cause human disease, requiring additional precautions such as limited lab access and protective equipment.
C. Biosafety Level 3
Biosafety Level 3: BSL-3 applies to microbes that can cause serious or potentially lethal diseases via inhalation, requiring controlled access and specialized safety equipment.
D. Biosafety Level 4
Biosafety Level 4: BSL-4 is reserved for dangerous, exotic pathogens such as Ebola virus, which carry high risk of life-threatening disease and require maximum containment facilities.
Full Explanation
A. Biosafety Level 1: BSL-1 is designated for microbes that pose minimal risk to humans and the environment. These organisms are non-pathogenic and can be safely handled with standard laboratory practices.
B. Biosafety Level 2: BSL-2 is used for organisms that pose moderate risk and may cause human disease, requiring additional precautions such as limited lab access and protective equipment.
C. Biosafety Level 3: BSL-3 applies to microbes that can cause serious or potentially lethal diseases via inhalation, requiring controlled access and specialized safety equipment.
D. Biosafety Level 4: BSL-4 is reserved for dangerous, exotic pathogens such as Ebola virus, which carry high risk of life-threatening disease and require maximum containment facilities.
What is the meaning of this sign?
A. Irritant to skin, eyes, or respiratory tract
Irritant to skin, eyes, or respiratory tract: The Globally Harmonized System (GHS) pictogram for an irritant is a diamond containing an exclamation mark (!). This symbol is used for less severe health hazards like skin or eye irritation.
B. Health hazard
Health hazard: While acute toxicity is a health hazard, the specific pictogram for a range of serious, but non-acute, long-term health issues (like carcinogenicity, mutagenicity, or respiratory sensitization) is a diamond containing a human silhouette with a starburst over the chest (often called the "man exploding" symbol).
C. Acute toxicity; fatal
cute toxicity; fatal: The skull and crossbones symbol is an internationally recognized icon representing poison or danger of death. In the GHS, this specific pictogram is used for substances that are toxic or fatal even after only a short exposure to a small amount.
D. Explosive
Explosive: The GHS pictogram for an explosive substance is a diamond containing a bomb undergoing an explosion
Full Explanation
A. Irritant to skin, eyes, or respiratory tract: The Globally Harmonized System (GHS) pictogram for an irritant is a diamond containing an exclamation mark (!). This symbol is used for less severe health hazards like skin or eye irritation.
B. Health hazard: While acute toxicity is a health hazard, the specific pictogram for a range of serious, but non-acute, long-term health issues (like carcinogenicity, mutagenicity, or respiratory sensitization) is a diamond containing a human silhouette with a starburst over the chest (often called the "man exploding" symbol).
C.Acute toxicity; fatal: The skull and crossbones symbol is an internationally recognized icon representing poison or danger of death. In the GHS, this specific pictogram is used for substances that are toxic or fatal even after only a short exposure to a small amount.
D. Explosive: The GHS pictogram for an explosive substance is a diamond containing a bomb undergoing an explosion
Microbes that are fatal and have no treatment or vaccines should be handled in a lab of what biosafety level?
A. Biosafety Level 1
Biosafety Level 1: This is for non-pathogenic organisms that pose minimal risk, so it is not suitable for highly fatal microbes.
B. Biosafety Level 2
Biosafety Level 2: This level is for moderate-risk organisms that may cause disease but have available treatments or preventive measures, which does not apply to untreatable fatal microbes.
C. Biosafety Level 3
Biosafety Level 3: This is for serious pathogens that can cause potentially lethal disease but for which treatments or vaccines may exist. It is not the highest level of containment.
D. Biosafety Level 4
Biosafety Level 4: BSL-4 is required for handling the most dangerous pathogens, including those with no available treatment or vaccines, such as Ebola and Marburg viruses.
Full Explanation
A. Biosafety Level 1: This is for non-pathogenic organisms that pose minimal risk, so it is not suitable for highly fatal microbes.
B. Biosafety Level 2: This level is for moderate-risk organisms that may cause disease but have available treatments or preventive measures, which does not apply to untreatable fatal microbes.
C. Biosafety Level 3: This is for serious pathogens that can cause potentially lethal disease but for which treatments or vaccines may exist. It is not the highest level of containment.
D. Biosafety Level 4: BSL-4 is required for handling the most dangerous pathogens, including those with no available treatment or vaccines, such as Ebola and Marburg viruses.