Nursing Elites

1. How many chromosomes are typically found in human cells, organized into pairs?

• A. 50
• B. 46
• C. 48
• D. 44

Correct answer: B

Rationale: Human cells typically contain 46 chromosomes organized into 23 pairs. This is the correct number for a normal human cell. Choices A, C, and D are incorrect because they do not represent the typical chromosome count in human cells.

2. Which of the following pairs share 100% of their genes?

• A. Biovular twins
• B. Fraternal twins
• C. Dizygotic (DZ) twins
• D. Monozygotic (MZ) twins

Correct answer: D

Rationale: The correct answer is Monozygotic (MZ) twins. Monozygotic twins, also known as identical twins, share 100% of their genes because they originate from the same fertilized egg that splits into two. Fraternal twins (choice B), also known as dizygotic (DZ) twins (choice C), result from two separate fertilized eggs and share approximately 50% of their genes. Biovular twins (choice A) is not a term used in genetics and does not describe a type of twinning.

3. Following an amniocentesis, a nurse is caring for a client. The nurse should observe the client for which of the following complications?

• A. Hyperemesis
• B. Proteinuria
• C. Hypoxia
• D. Hemorrhage

Correct answer: D

Rationale: After an amniocentesis, the nurse should monitor the client for potential complications, with hemorrhage being a significant concern due to the invasive nature of the procedure. Hyperemesis (severe vomiting), proteinuria (excessive protein in the urine), and hypoxia (low oxygen levels) are not typically associated with amniocentesis and are less likely to occur compared to hemorrhage, which is a more common complication that requires prompt recognition and intervention.

4. 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.

5. A client who is 24 weeks gestation arrives at the clinic reporting swollen hands. On examination, the nurse notes the client has had a rapid weight gain over six weeks. Which action should the nurse implement next?

• A. Review the client's previous blood pressures in the chart.
• B. Obtain the client's blood pressure.
• C. Observe and time the client's contractions.
• D. Examine the client for pedal edema.

Correct answer: B

Rationale: Swollen hands and rapid weight gain could be signs of preeclampsia, so the next step is to check the client's blood pressure. Elevated blood pressure is a key indicator in assessing for preeclampsia in pregnancy. Reviewing the client's previous blood pressures may provide additional context but obtaining the current blood pressure is crucial for immediate assessment. Observing and timing contractions are not relevant in this scenario as the client is not presenting with signs of active labor. Examining for pedal edema is important in assessing for fluid retention, but obtaining the blood pressure takes precedence in this case due to the potential seriousness of preeclampsia.

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