一位懷孕11週的28歲初產婦前來產檢。護理師觀察到她有多處嚴重的嚴重齲齒,且舉止表現出極端過動與精神亢奮。在不帶批判性的詢問下,個案承認偶爾會吸食甲基安非他命來「保持體力」,儘管她已經盡量減少用量了。她的血壓為 145/92 mmHg,心跳 105 次/分。針對這種藥物,護理師必須預期並積極監測哪些嚴重的胎兒與母體併發症?(多選題)
A 28-year-old primigravida at 11 weeks' gestation presents for a prenatal checkup. The nurse observes severe dental caries and an extremely hyperalert, jittery demeanor. Upon nonjudgmental inquiry, the client admits to occasionally smoking methamphetamine to "stay energetic," though she has tried to cut back. Her BP is 145/92 mmHg and HR is 105 bpm. What severe fetal and maternal complications related directly to this substance must the nurse anticipate and aggressively monitor for? (Select all that apply.)
- APlacental abruption (abruptio placentae) leading to fatal hemorrhage and fetal demise.✓ 正解導致致命性出血和胎兒死亡的胎盤早期剝離(胎盤早剝)。
- BProfound fetal macrosomia resulting in mechanical birth trauma during vaginal delivery.導致陰道分娩時機械性產傷的嚴重胎兒巨大兒。
- CIntrauterine growth restriction (IUGR) due to persistent impaired placental perfusion.✓ 正解由於持續性胎盤灌流不良引起的宮內生長遲滯(IUGR)。
- DCongenital central nervous system depression leading to a floppy, bradycardic newborn at birth.導致出生時鬆弛、心搏過緩的新生兒之先天性中樞神經系統抑制。
- EPreterm labor and subsequent premature birth prompted by severe maternal systemic hypertension and vascular spasms.✓ 正解由嚴重母體全身性高血壓和血管痙攣引發的早產及隨後的早產。
本題測驗高風險妊娠中的物質濫用健康促進防禦。甲基安非他命(Methamphetamine)與古柯鹼(Cocaine)同屬強力中樞神經興奮劑,其最具破壞性的藥理機制是引起母體極端且劇烈的全身性「血管收縮(Vasoconstriction)」。這種收縮會使提供胎兒營養的胎盤血流嚴重阻斷。由於缺乏長期血液與營養供應,胎兒必定出現子宮內生長遲滯(IUGR)(選項C正確,因此不會發生選項B的巨嬰 Macrosomia)。此外,劇烈的血管痙攣加上高血壓極易將胎盤硬生生地從子宮壁扯落,發生極端致命的胎盤早期剝離(Placental Abruption),威脅母嬰生命(選項A正確)。高壓血流狀態同時會大幅增加早產陣痛與早產的機率(選項E正確)。因其為「興奮劑」,嬰兒出生後會表現出毒品戒斷的極度亢奮、尖銳哭叫,而非選項D的中樞神經系統被抑制與低張力(那是使用鴉片類或海洛因的特徵)。
This question tests substance abuse health promotion in high-risk pregnancy. Methamphetamine, like cocaine, is a potent central nervous system stimulant; its most destructive pharmacologic mechanism is causing severe, systemic vasoconstriction in the mother. This vasoconstriction severely impairs placental blood flow that supplies the fetus. Due to lack of long-term blood and nutrient supply, the fetus develops intrauterine growth restriction (IUGR) (Option C is correct, so macrosomia in Option B will not occur). In addition, intense vasospasm combined with hypertension can forcibly shear the placenta off the uterine wall, causing catastrophic placental abruption that threatens both mother and fetus (Option A is correct). High-pressure blood flow also greatly increases the likelihood of preterm labor and premature birth (Option E is correct). Because methamphetamine is a stimulant, the newborn presents with extreme withdrawal-related irritability and high-pitched crying rather than the CNS depression and hypotonia described in Option D (which are characteristic of opioids or heroin).
雖然台灣臨床上毒品濫用孕產婦相對較受社政體系(如社會局高風險家庭)介入干預,但針對孕期古柯鹼及安非他命剝離機制的考點,是美國 NCLEX 與 AWHONN 母嬰護理最為經典也常見的絕對高頻題型。