Included in the definition of tachysystole is:
Contraction duration of less than 40 seconds.
Contraction frequency of greater than 5 in 10 minutes.
Contraction intensity of less than 80 mm Hg.
Resting tone of less than 18 mm Hg.
The Correct Answer is B
Choice A rationale
Contraction duration less than 40 seconds doesn't define tachysystole. Tachysystole focuses on frequency, not duration, of contractions over a specific time frame.
Choice B rationale
Contraction frequency of more than 5 in 10 minutes defines tachysystole. This frequency indicates excessive uterine activity, requiring intervention to prevent fetal distress.
Choice C rationale
Contraction intensity less than 80 mm Hg does not define tachysystole. Intensity relates to contraction strength, but tachysystole is about frequency exceeding the normal range.
Choice D rationale
Resting tone less than 18 mm Hg isn't part of tachysystole's definition. Tachysystole pertains to contraction frequency, not resting tone, which measures uterine relaxation between contractions.
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View Related questions
Correct Answer is A
Explanation
Choice A rationale
Vaginal hematomas are usually associated with severe pain due to the accumulation of blood in the tissues.
Choice B rationale
Bleeding might be visible, but hematomas often cause internal accumulation, not external bleeding.
Choice C rationale
Warmth is not typically associated with hematomas; instead, pain and swelling are more common.
Choice D rationale
Redness may occur, but pain is the most consistent symptom.
Correct Answer is D
Explanation
Choice A rationale
Placental abruption involves the detachment of the placenta from the uterine wall before delivery, causing bleeding, abdominal pain, and uterine tenderness. It does not typically cause dyspnea, hypotension, frothy sputum, or loss of consciousness.
Choice B rationale
Uterine rupture is a tear in the uterine wall, often in a scarred uterus. Symptoms include severe abdominal pain, abnormal fetal heart rate, and vaginal bleeding. It can cause shock, but not frothy sputum or sudden dyspnea.
Choice C rationale
Uterine inversion occurs when the uterus turns inside out, often during placental delivery. It leads to pain, hemorrhage, and shock. Like uterine rupture, it does not cause frothy sputum or sudden dyspnea.
Choice D rationale
Anaphylactoid syndrome (amniotic fluid embolism) occurs when amniotic fluid enters the maternal circulation, causing an anaphylactic reaction. Symptoms include sudden dyspnea, hypotension, frothy sputum, and loss of consciousness, fitting the scenario described.