A fertilised egg divides to form a ball of cells called an:
- A. Sac
- B. Cartilage
- C. Embryo
- D. Ovary
Correct Answer: C
Rationale: After fertilisation, the zygote undergoes cell division to form an embryo, which develops into a fetus.
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The nurse caring for the pregnant patient must understand that the hormone essential for maintaining pregnancy is:
- A. estrogen.
- B. human chorionic gonadotropin (hCG).
- C. oxytocin.
- D. progesteron
Correct Answer: D
Rationale: The correct answer is D: progesterone. Progesterone is essential for maintaining pregnancy as it helps in thickening the uterine lining to support implantation and fetal development. Estrogen (choice A) plays a role in preparing the uterus for implantation but is not the primary hormone for maintaining pregnancy. Human chorionic gonadotropin (hCG) (choice B) is produced by the placenta and helps in detecting pregnancy but does not maintain it. Oxytocin (choice C) is involved in labor and breastfeeding, not in maintaining pregnancy.
The penis is associated most with which system in the human body?
- A. The skeletal system
- B. The reproductive system
- C. The circulatory system
- D. The endocrine system
Correct Answer: B
Rationale: The penis is a primary organ of the male reproductive system, involved in sexual intercourse and urination.
A woman's obstetric history indicates that she is pregnant for the fourth time and all of her children from previous pregnancies are living. One was born at 39 weeks of gestation, twins were born at 34 weeks of gestation, and another child was born at 35 weeks of gestation. What is her gravidity and parity using the GTPAL system?
- A. 3-1-1-1-3
- B. 4-1-2-0-4
- C. 3-0-3-0-3
- D. 4-2-1-0-3
Correct Answer: B
Rationale: The correct calculation of this woman's gravidity and parity is 4-1-2-0-4. The numbers reflect the woman's gravidity and parity information.
The nurse admitting a 3-year-old patient with the medical diagnosis of pneumonia identifies congestion and inspiratory wheezes in both lungs. This information is considered part of which step of the nursing process?
- A. Diagnosis
- B. Evaluation
- C. Assessment
- D. Implementation
Correct Answer: C
Rationale: Identifying symptoms such as congestion and wheezing is part of the assessment phase of the nursing process, where data is collected and analyzed.
The nurse caring for the pregnant patient must understand that the hormone essential for maintaining pregnancy is:
- A. estrogen.
- B. human chorionic gonadotropin (hCG).
- C. oxytocin.
- D. progesterone.
Correct Answer: D
Rationale: Progesterone is essential for maintaining pregnancy; it does so by relaxing smooth muscles. This reduces uterine activity and prevents miscarriage.