HESI LPN
HESI Focus on Maternity Exam
1. Do sebaceous glands cause a developing organism to grow arms or wings, skin, or scales?
- A. True
- B. False
- C. Possibly
- D. Never
Correct answer: B
Rationale: The correct answer is B: False. Sebaceous glands are associated with the skin's oil production and have no role in the development of limbs or body coverings. Sebaceous glands primarily produce sebum, an oily substance that lubricates and waterproofs the skin and hair. Choices A, C, and D are incorrect because sebaceous glands do not influence the growth of arms, wings, skin, or scales in a developing organism.
2. A client at 34 weeks gestation comes to the birthing center complaining of vaginal bleeding that began one hour ago. The nurse's assessment reveals approximately 30ML of bright red vaginal bleeding, fetal heart rate of 130 - 140 beats per minute, no contractions, and no complaints of pain. What is the most likely cause of this client's bleeding?
- A. Abruptio Placenta
- B. Placenta Previa
- C. Normal bloody show indicating induction of labor
- D. A ruptured blood vessel in the vaginal vault
Correct answer: B
Rationale: Placenta previa, a condition where the placenta covers the cervix, can cause painless, bright red vaginal bleeding in the third trimester. In this scenario, the absence of contractions and pain, along with the presence of significant bright red bleeding, is more indicative of placenta previa rather than abruptio placenta or a ruptured vessel. A normal bloody show typically occurs closer to the onset of labor and is not associated with the amount of bleeding described in the question.
3. When both alleles' effects are shown, there is said to be:
- A. codominance.
- B. preponderance.
- C. ascendance.
- D. concurrence.
Correct answer: A
Rationale: The correct answer is A: codominance. Codominance refers to a genetic scenario where both alleles in a gene pair are fully expressed, leading to a phenotype that displays traits from both alleles equally. This is distinct from incomplete dominance where the traits blend. Choices B, C, and D are incorrect. Preponderance does not specifically relate to the expression of alleles. Ascendance and concurrence do not describe the genetic concept of codominance where both alleles are fully expressed.
4. What nursing diagnosis is the most appropriate for a woman experiencing severe preeclampsia?
- A. Risk for injury to mother and fetus, related to central nervous system (CNS) irritability.
- B. Risk for altered gas exchange.
- C. Risk for deficient fluid volume, related to increased sodium retention secondary to the administration of magnesium sulfate.
- D. Risk for increased cardiac output, related to the use of antihypertensive drugs.
Correct answer: A
Rationale: The most appropriate nursing diagnosis for a woman experiencing severe preeclampsia is 'Risk for injury to mother and fetus, related to central nervous system (CNS) irritability.' Severe preeclampsia poses a significant risk of injury to both the mother and the fetus due to complications such as seizures, stroke, and placental abruption. 'Risk for altered gas exchange' is not the priority diagnosis as pulmonary edema is more common in severe preeclampsia. 'Risk for deficient fluid volume' is incorrect as sodium retention in severe preeclampsia often leads to fluid overload. 'Risk for increased cardiac output' is also incorrect as antihypertensive drugs are used to reduce cardiac output in this condition.
5. Do dizygotic (DZ) twins run in families?
- A. Yes
- B. No
- C. Rarely
- D. Never
Correct answer: A
Rationale: Yes, dizygotic (DZ) twins can run in families. This is due to genetic factors that influence hyperovulation, where a woman releases multiple eggs during her menstrual cycle. This genetic predisposition can be passed down through generations, increasing the likelihood of having dizygotic twins. Choices B, C, and D are incorrect because the statement that dizygotic twins run in families is true, as supported by scientific evidence. It is important to note that while the genetic predisposition for dizygotic twins can run in families, it does not guarantee that every generation will have twins, as other factors also play a role in twin pregnancies.
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