A woman with severe preeclampsia is being treated with bed rest and intravenous magnesium sulfate. The drug classification of this medication is

Choice A) Newborns are abdominal breathers is incorrect because this is not a reason why the respiratory rate should be counted for a complete minute, but rather a characteristic of how newborns breathe. Abdominal breathing means that the diaphragm and the abdominal muscles are the main muscles used for breathing, rather than the chest muscles. Newborns are abdominal breathers because their chest wall is more compliant and less stable than adults, and their intercostal muscles are not fully developed. Abdominal breathing does not affect the accuracy or duration of measuring the respiratory rate, as long as the abdomen is visible and palpable. Therefore, this response is irrelevant and inaccurate.

Choice B) Activity will increase the respiratory rate is incorrect because this is not a reason why the respiratory rate should be counted for a complete minute, but rather a factor that can influence the respiratory rate. Activity means any physical or mental exertion that requires more oxygen and energy from the body. Activity can increase the respiratory rate, as well as the heart rate and blood pressure, to meet the increased oxygen demand and carbon dioxide removal. However, activity does not affect the accuracy or duration of measuring the respiratory rate, as long as the newborn is calm and resting during the measurement. Therefore, this response is irrelevant and inaccurate.

Choice C) The rate and rhythm of breath are irregular in newborns is correct because this is a reason why the respiratory rate should be counted for a complete minute. The rate and rhythm of breath refer to how fast and how regularly one breathes. Newborns have an irregular rate and rhythm of breath, which means that they breathe at different speeds and intervals, sometimes pausing for a few seconds between breaths. This is normal and harmless for newborns, as long as they do not stop breathing for more than 20 seconds or show signs of distress. However, it can make it difficult to measure the respiratory rate accurately, as counting for a shorter period may not reflect the true average rate. Therefore, counting for a complete minute can ensure a more reliable measurement. Therefore, this response is clear and accurate.

Choice D) Newborns do not expand their lungs fully with each respiration is incorrect because this is not a reason why the respiratory rate should be counted for a complete minute, but rather a feature of how newborns breathe.

Lung expansion means how much air one inhales and exhales with each breath. Newborns do not expand their lungs fully with each respiration, because they have smaller lung volumes and capacities than adults, and they breathe more shallowly and rapidly. However, lung expansion does not affect the accuracy or duration of measuring the respiratory rate, as long as the chest or abdomen movement is visible and palpable. Therefore, this response is irrelevant and inaccurate.

Choice A) Calm, easy to comfort is incorrect because this is not a sign of intrauterine drug exposure, but rather a sign of normal or healthy newborn behavior. Newborns who are calm and easy to comfort are usually well-adjusted and have a good temperament. They respond positively to soothing techniques such as holding, rocking, or singing.

They do not show signs of distress or withdrawal, which are common in newborns who are exposed to drugs in utero. Therefore, this response is irrelevant and inaccurate.

Choice B) Tremors is correct because this is a sign of intrauterine drug exposure that can indicate neurological damage or withdrawal syndrome. Tremors are involuntary shaking or quivering movements of the body or limbs that occur due to abnormal electrical activity in the brain or nervous system. Newborns who are exposed to drugs such as opioids, cocaine, or alcohol in utero may develop tremors as a result of brain injury, hypoxia, hypoglycemia, or seizures. They may also experience tremors as a symptom of neonatal abstinence syndrome (NAS), which is a condition that occurs when the newborn stops receiving the drug from the mother and goes through withdrawal. NAS can cause various physical and behavioral problems in the newborn, such as irritability, poor feeding, vomiting, diarrhea, sweating, fever, or seizures. Therefore, this response is clear and accurate.

Choice C) Persistent shrill cry is correct because this is a sign of intrauterine drug exposure that can indicate pain or discomfort in the newborn. Crying is a normal and natural way for newborns to communicate their needs and feelings. However, some newborns who are exposed to drugs such as opioids, cocaine, or alcohol in utero may cry more often, louder, or longer than usual. They may have a high-pitched or piercing cry that is difficult to soothe or stop. This may be due to various factors such as hunger, colic, infection, injury, or withdrawal. A persistent shrill cry can also affect the bonding and attachment between the newborn and the parents or caregivers. Therefore, this response is clear and accurate.

Choice D) Difficult to console is correct because this is a sign of intrauterine drug exposure that can indicate emotional or behavioral problems in the newborn. Newborns who are difficult to console are usually unhappy and restless. They do not respond well to soothing techniques such as holding, rocking, or singing. They may have trouble sleeping, feeding, or interacting with others. They may also show signs of agitation, anxiety, or depression. These problems may be caused by exposure to drugs such as opioids, cocaine, or alcohol in utero, which can affect the development and function of the brain and nervous system. They may also be influenced by the environment and relationship of the newborn with the parents or caregivers. Therefore, this response is clear and accurate.