What is the result of hypothermia in the newborn?

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.

Choice a) A phase of the female menstrual cycle that involves the release of an egg (ovum) from one of the ovaries is incorrect because this is not the definition of Mittelschmerz, but rather the definition of ovulation. Ovulation is the process by which one or more eggs are released from the ovaries and travel to the fallopian tubes, where they can be fertilized by sperm. Ovulation usually occurs around the middle of the menstrual cycle, which is typically 28 days long, but can vary from person to person. Ovulation can be detected by changes in basal body temperature, cervical mucus, or hormone levels. Therefore, this response is inaccurate and misleading.

Choice B) A female reproductive organ in which ova or eggs are produced is incorrect because this is not the definition of Mittelschmerz, but rather the definition of ovary. The ovary is a paired organ that is located on either side of the uterus in the lower abdomen. The ovary contains thousands of follicles, which are sacs that contain immature eggs. Each month, one or more follicles mature and release an egg during ovulation. The ovary also produces hormones such as estrogen and progesterone, which regulate the menstrual cycle and pregnancy. Therefore, this response is irrelevant and inaccurate.

Choice C) The regular discharge of blood and mucosal tissue from the inner lining of the uterus through the vagina is incorrect because this is not the definition of Mittelschmerz, but rather the definition of menstruation. Menstruation is the process by which the endometrium, which is the tissue that lines the uterus and prepares for implantation of a fertilized egg, is shed and expelled through the vagina if pregnancy does not occur. Menstruation usually occurs once a month and lasts for about 3 to 7 days, but can vary from person to person. Menstruation can be accompanied by symptoms such as cramps, bloating, mood swings, or headaches. Therefore, this response is irrelevant and inaccurate.

Choice D) One-sided, lower belly pain associated with normal ovulation. Usually occurs about 14 days before the next menstrual period is correct because this is the definition of Mittelschmerz. Mittelschmerz is a German word that means "middle pain". It refers to a mild to moderate pain or discomfort that some women experience in their lower abdomen around the time of ovulation. The pain may last for a few minutes to a few hours and may switch sides from month to month depending on which ovary releases an egg. The pain may be caused by irritation or stretching of the ovarian or abdominal wall by the maturing follicle or by fluid or blood released during ovulation.

Mittelschmerz is not a sign of any disease or problem and does not require any treatment. However, it can be confused with other conditions that cause pelvic pain, such as appendicitis, ectopic pregnancy, or ovarian cysts. Therefore, women who have severe or persistent pain should consult their doctor for diagnosis and treatment. Therefore, this response is clear and accurate.