HESI LPN
Maternity HESI Practice Questions
1. Monozygotic (MZ) twins are known as fraternal twins.
- A. TRUE
- B. FALSE
- C. Possibly
- D. Never
Correct answer: B
Rationale: The correct answer is B: 'FALSE.' Monozygotic (MZ) twins are identical twins, not fraternal. Fraternal twins are dizygotic (DZ). The statement in the question is incorrect as MZ twins are genetically identical, while fraternal twins actually refer to dizygotic twins who develop from two separate fertilized eggs. Therefore, monozygotic twins are not known as fraternal twins, making option B the correct choice. Options A, C, and D are incorrect as they do not accurately describe the relationship between monozygotic and fraternal twins.
2. What determines a child’s sex?
- A. Presence of teratogens at the time of conception.
- B. Sex chromosome received from the mother.
- C. Presence of teratogens at the time of ovulation.
- D. Sex chromosome received from the father.
Correct answer: D
Rationale: The correct answer is the sex chromosome received from the father. The father contributes either an X or Y chromosome, which determines the child's sex. This occurs at the moment of fertilization when the sperm carrying either an X (resulting in a female) or Y (resulting in a male) chromosome fertilizes the egg. Choices A, B, and C are incorrect because the presence of teratogens at the time of conception or ovulation does not determine the child's sex. While the sex chromosome received from the mother is important, it is the father's contribution that ultimately determines the child's sex.
3. At 1200, the practical nurse learns that a client's 0900 dose of an anticonvulsant was not given. The next scheduled dose is at 2100. Which action should the PN take?
- A. Administer half of the missed dose immediately
- B. Administer the missed dose as soon as possible
- C. Give the missed dose with the next scheduled dose
- D. Withhold the missed dose unless seizure activity occurs
Correct answer: B
Rationale: Administering the missed dose as soon as possible is crucial in this situation. Missing an anticonvulsant dose can lead to breakthrough seizures, which are harmful to the client. Administering the missed dose promptly helps maintain the therapeutic level of the medication and reduces the risk of seizure activity. Giving half the dose may not provide adequate protection against seizures. Delaying the dose until the next scheduled time increases the time the client is without the medication, potentially increasing the risk of seizures. Withholding the missed dose unless seizure activity occurs is not recommended, as prevention is key in managing anticonvulsant therapy.
4. What are the sources of information about the family?
- A. Interview results with members of the family
- B. Family folder
- C. Actual observation of the family situation
- D. All these sources of information
Correct answer: D
Rationale: The correct answer is D because all the listed sources - interview results with family members, family folder, and actual observation of the family situation - provide comprehensive information about the family. Choice A alone (interview results) might not capture the complete picture of the family, as it may be biased or limited. Choice B (family folder) could contain valuable information but might not be up to date or comprehensive. Choice C (actual observation) is essential to understand the family dynamics, but it alone may not provide all the necessary information. Therefore, the combination of all these sources (D) is needed for a thorough understanding of the family.
5. A healthcare professional is caring for a client who has a prescription for morphine 5mg IM but accidentally administers the entire 10mg from the single-dose vial. Which of the following actions should the healthcare professional take first?
- A. Complete an incident report
- B. Measure the client’s respiratory rate
- C. Report the incident to the pharmacy
- D. Notify the client's provider
Correct answer: B
Rationale: Assessing the client's respiratory rate is the priority in this situation as overdosing on morphine can lead to respiratory depression, making it crucial to monitor the client's breathing. Completing an incident report (choice A) is important but should not be the first action. Reporting the incident to the pharmacy (choice C) and notifying the client's provider (choice D) are necessary steps but assessing the client's respiratory status takes precedence to ensure immediate safety and intervention.