A nurse has taught a pregnant woman about toxoplasmosis. What statement by the patient indicates a need for further instruction?
I will be certain to empty the litter boxes regularly.
I have to wash all of my fruits and vegetables.
I won't eat raw eggs.
I need to be cautious when cooking meat.
The Correct Answer is A
Choice a) I will be certain to empty the litter boxes regularly is incorrect because this is a risky behavior for a pregnant woman who wants to prevent toxoplasmosis. Toxoplasmosis is an infection caused by a parasite called Toxoplasma gondii, which can be found in the feces of cats and other animals. If a pregnant woman gets infected with toxoplasmosis, she can pass it to her unborn baby, which can cause serious problems such as miscarriage, stillbirth, or birth defects. Therefore, a pregnant woman should avoid contact with cat litter and let someone else handle the litter boxes, or wear gloves and wash her hands thoroughly if she has to do it herself.
Choice b) I have to wash all of my fruits and vegetables is correct because this is a good practice for a pregnant woman who wants to prevent toxoplasmosis. Toxoplasmosis can also be transmitted through contaminated soil or water, which can adhere to fruits and vegetables. Therefore, a pregnant woman should wash all of her fruits and vegetables before eating them, and peel or cook them if possible, to remove any traces of the parasite.
Choice c) I won't eat raw eggs is correct because this is another good practice for a pregnant woman who wants to prevent toxoplasmosis. Toxoplasmosis can also be acquired through eating undercooked or raw meat or eggs that contain the parasite. Therefore, a pregnant woman should avoid eating raw eggs or any foods that contain them, such as mayonnaise, mousse, or homemade ice cream, and cook all of her meat and eggs thoroughly until they are no longer pink or runny.
Choice d) I need to be cautious when cooking meat is correct because this is also an important practice for a pregnant woman who wants to prevent toxoplasmosis. Toxoplasmosis can also be spread through handling raw meat that contains the parasite. Therefore, a pregnant woman should be careful when cooking meat and use separate utensils and cutting boards for raw and cooked meat, wash her hands and surfaces after touching raw meat, and avoid tasting raw meat while cooking it.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
Choice a) 100 to 120 is incorrect because this is too low for a normal newborn's heart rate. The heart rate of a newborn is influenced by factors such as gestational age, activity level, temperature, and health status. A full-term, quiet, alert newborn should have a heart rate between 120 and 160 beats per minute, which reflects their high metabolic rate and oxygen demand. A heart rate below 100 beats per minute may indicate bradycardia, which can be caused by hypoxia, hypothermia, or cardiac problems.
Choice b) 120 to 160 is correct because this is the normal range for a full-term, quiet, alert newborn's heart rate. The apical pulse is the best way to measure the heart rate of a newborn, as it reflects the actual contractions of the heart. The apical pulse can be auscultated at the fourth intercostal space on the left side of the chest, just below the nipple line. The nurse should count the apical pulse for a full minute, as it may vary with the respiratory cycle.
Choice c) 80 to 100 is incorrect because this is also too low for a normal newborn's heart rate. A full-term, quiet, alert newborn should have a heart rate between 120 and 160 beats per minute, which is higher than that of an adult or an older child. A heart rate below 100 beats per minute may indicate bradycardia, which can be caused by hypoxia, hypothermia, or cardiac problems.
Choice d) 150 to 180 is incorrect because this is too high for a normal newborn's heart rate. A full-term, quiet, alert newborn should have a heart rate between 120 and 160 beats per minute, which is lower than that of a preterm or a crying newborn. A heart rate above 160 beats per minute may indicate tachycardia, which can be caused by fever, infection, anemia, or hyperthyroidism.
Correct Answer is C
Explanation
Choice A) dilates the bronchioles, decreasing airway resistance: This is not the correct function of surfactant.
Surfactant is a substance that reduces the surface tension of the fluid that lines the alveoli, which are the tiny air sacs in the lungs where gas exchange occurs. Surfactant does not affect the diameter of the bronchioles, which are the small airways that branch from the bronchi. Bronchodilation and bronchoconstriction are regulated by the autonomic nervous system and various mediators, such as histamine, epinephrine, and acetylcholine.
Choice B) provides transportation for oxygen to enter the blood supply: This is not the correct function of surfactant. Surfactant does not transport oxygen or any other gas. Oxygen diffuses from the alveoli into the capillaries, where it binds to hemoglobin in the red blood cells. The red blood cells then transport oxygen to the tissues via the blood circulation. Surfactant does not play a role in this process.
Choice C) keeps the alveoli open during expiration: This is the correct function of surfactant. Surfactant prevents the alveoli from collapsing during expiration by lowering the surface tension of the fluid that lines them. This allows for easier breathing and better gas exchange. Without enough surfactant, the alveoli tend to collapse and stick together, causing atelectasis, which is a condition where some or all of a lung collapses. Atelectasis can lead to hypoxia, respiratory distress, and infection.
Choice D) causes increased permeability of the alveoli: This is not the correct function of surfactant. Surfactant does not increase or decrease the permeability of the alveoli, which is the ability of substances to pass through them.
Permeability of the alveoli depends on several factors, such as pressure gradients, solubility, molecular size, and membrane thickness. Increased permeability of the alveoli can occur in conditions such as acute respiratory distress syndrome (ARDS), where fluid leaks into the alveolar space and impairs gas exchange. Surfactant does not cause this condition, but it can be affected by it.
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