What is an infectious disease that can be transmitted directly from one person to another?
A susceptible host
A communicable disease
A portal of entry to a host
A portal of exit from the reservoir
The Correct Answer is B
Choice A reason: A susceptible host is not an infectious disease, but a factor that influences the transmission of an infectious disease. A susceptible host is a person who is vulnerable to infection due to factors such as age, health status, immunization, or genetic predisposition. A susceptible host may become infected by a communicable disease, but it is not the disease itself.
Choice B reason: A communicable disease is an infectious disease that can be transmitted directly from one person to another. A communicable disease is caused by a pathogen, such as a virus, bacterium, fungus, or parasite, that can spread through contact, droplet, airborne, vector, or vehicle transmission. Examples of communicable diseases are influenza, tuberculosis, measles, malaria, and HIV/AIDS.
Choice C reason: A portal of entry to a host is not an infectious disease, but a factor that influences the transmission of an infectious disease. A portal of entry to a host is a route through which a pathogen can enter the body of a susceptible host and cause infection. A portal of entry to a host may be a break in the skin, a mucous membrane, or a body opening, such as the mouth, nose, eyes, or genitals. A portal of entry to a host may facilitate the transmission of a communicable disease, but it is not the disease itself.
Choice D reason: A portal of exit from the reservoir is not an infectious disease, but a factor that influences the transmission of an infectious disease. A portal of exit from the reservoir is a route through which a pathogen can leave the body of an infected person or animal and reach another susceptible host. A portal of exit from the reservoir may be a body fluid, such as blood, saliva, urine, or feces, or a body part, such as the skin, hair, or nails. A portal of exit from the reservoir may enable the transmission of a communicable disease, but it is not the disease itself.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
Choice A reason: This is not the highest priority client because a urinary tract infection (UTI) is a common and treatable condition that affects the lower urinary system, such as the bladder or urethra. A fever of 38.5°C and flank pain can indicate that the infection has spread to the upper urinary system, such as the kidneys, which can cause pyelonephritis. Pyelonephritis is a serious but not lifethreatening complication that requires antibiotic therapy and hydration. The nurse should monitor the client's vital signs, urine output, and pain level and administer the prescribed medication and fluids.
Choice B reason: This is not the highest priority client because a deep vein thrombosis (DVT) is a blood clot that forms in a deep vein, usually in the lower extremities. A positive Homans' sign and edema in the affected leg can indicate that the clot is causing inflammation and obstruction of the blood flow. DVT is a serious but not lifethreatening complication that requires anticoagulant therapy and compression therapy. The nurse should monitor the client's vital signs, leg circumference, and pain level and administer the prescribed medication and stockings.
Choice C reason: This is the highest priority client because a myocardial infarction (MI) is a heart attack that occurs when the blood flow to a part of the heart muscle is blocked, causing tissue damage or death. Chest pain and shortness of breath can indicate that the client is experiencing acute cardiac ischemia, which can lead to cardiac arrest or heart failure. MI is a lifethreatening emergency that requires immediate intervention and treatment. The nurse should activate the rapid response team, monitor the client's vital signs, electrocardiogram, and oxygen saturation, and administer the prescribed medication and oxygen.
Choice D reason: This is not the highest priority client because a stroke is a brain attack that occurs when the blood flow to a part of the brain is interrupted, causing tissue damage or death. Slurred speech and facial droop can indicate that the client is experiencing acute neurological impairment, which can affect their communication and facial expression. Stroke is a serious but not lifethreatening complication that requires prompt evaluation and treatment. The nurse should monitor the client's vital signs, neurological status, and glucose level and administer the prescribed medication and fluids.
Correct Answer is A
Explanation
Choice A reason: Stage 4 is the remodeling stage of bone healing, which occurs from 6 to 12 weeks after the fracture. In this stage, the callus, which is a mass of fibrous tissue and cartilage that forms around the fracture site, is gradually resorbed and replaced by mature bone. The bone becomes stronger and more compact and regains its original shape and function.
Choice B reason: Stage 3 is the callus formation stage of bone healing, which occurs from 2 to 6 weeks after the fracture. In this stage, the granulation tissue, which is a soft tissue that fills the fracture gap, is replaced by a callus that bridges the fracture ends. The callus is composed of fibroblasts, chondroblasts, and osteoblasts that produce collagen, cartilage, and bone matrix. The callus stabilizes the fracture and prepares it for remodeling.
Choice C reason: Stage 5 is not a valid stage of bone healing. There are only four stages of bone healing: stage 1 is the inflammatory stage, stage 2 is the reparative stage, stage 3 is the callus formation stage, and stage 4 is the remodeling stage.
Choice D reason: Stage 1 is the inflammatory stage of bone healing, which occurs from the time of the fracture to 3 to 5 days after the fracture. In this stage, the blood vessels around the fracture site are ruptured and form a hematoma, which is a blood clot that surrounds the fracture ends. The hematoma triggers an inflammatory response that involves the release of cytokines, growth factors, and inflammatory cells that initiate the healing process. The hematoma also provides a scaffold for the granulation tissue to grow.
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