what hormone is responsible for amenorrhea in the pregnant woman

NCLEX-PN

Kaplan NCLEX Question of The Day

1. Which hormone is responsible for amenorrhea in the pregnant woman?

A. Progesterone
B. Estrogen
C. Follicle-stimulating hormone (FSH)
D. Human chorionic gonadotropin (hCG)

Correct answer: A

Rationale: Correct! Progesterone is the hormone responsible for amenorrhea in pregnant women. Progesterone plays a crucial role in maintaining the uterine lining for implantation and supporting early pregnancy. High levels of progesterone during pregnancy suppress the normal menstrual cycle, leading to amenorrhea. Estrogen, FSH, and hCG do not directly cause amenorrhea in pregnant women. Estrogen is involved in the development of female secondary sexual characteristics, FSH is involved in the growth and maturation of ovarian follicles, and hCG is produced by the placenta to support the production of progesterone during pregnancy.

2. A 3-day post-operative client with a Left Knee Replacement is complaining of being chilled and nauseated. Her TPR is 100.4-94-28 and Blood Pressure is 146/90. What is the nurse's best action?

A. Call the surgeon immediately.
B. Administer Extra Strength Tylenol per orders.
C. Assess the surgical site.
D. Offer extra blankets and increase fluids.

Correct answer: A

Rationale: The correct answer is to call the surgeon immediately. The client's symptoms of being chilled and nauseated, along with an elevated temperature (100.4�F), could indicate an infection following the knee replacement surgery. In this scenario, prompt action is crucial to prevent any potential complications. Calling the surgeon allows for further assessment, possible diagnostic tests, and appropriate interventions to be initiated. Administering Tylenol or offering blankets and fluids may temporarily alleviate symptoms but do not address the underlying issue of a potential infection. Assessing the surgical site is important but not as urgent as involving the surgeon in this situation.

3. Which of the following medications is a serotonin antagonist that might be used to relieve nausea and vomiting?

A. metoclopramide (Reglan)
B. ondansetron (Zofran)
C. hydroxyzine (Vistaril)
D. prochlorperazine (Compazine)

Correct answer: B

Rationale: Zofran is a serotonin antagonist that can be used to relieve nausea and vomiting. Ondansetron (Zofran) works by blocking serotonin receptors in the chemoreceptor trigger zone (CTZ) and the gastrointestinal tract. This action helps reduce nausea and vomiting. Metoclopramide (Reglan) works as a dopamine antagonist and also has prokinetic effects, making it effective for different conditions. Hydroxyzine (Vistaril) is an antihistamine with antiemetic properties, but it does not act as a serotonin antagonist. Prochlorperazine (Compazine) is a dopamine antagonist that is also used to treat nausea and vomiting, but not as a serotonin antagonist like ondansetron.

4. The physician wants to know if a client is tolerating their total parenteral nutrition. Which of the following laboratory tests is likely to be ordered?

A. triglyceride level
B. liver function tests
C. a glucose tolerance test
D. a complete blood count

Correct answer: B

Rationale: The liver is crucial in processing nutrients and medications received through total parenteral nutrition. Liver function tests assess various enzymes produced by the liver, including prothrombin time/partial prothrombin time, serum glutamic oxaloacetic and pyruvic transaminases, gamma glutamyl transpeptidase, albumin, and alkaline phosphatase. Monitoring these enzymes can help determine if the liver is functioning properly to metabolize the nutrients from TPN. Triglyceride levels (Choice A) primarily evaluate the body's ability to clear fats, not specifically related to TPN tolerance. A glucose tolerance test (Choice C) is used to diagnose diabetes by measuring blood glucose levels after ingesting a glucose-rich solution, not directly related to TPN tolerance. A complete blood count (Choice D) assesses blood components such as red blood cells, white blood cells, and platelets but does not provide specific information about TPN tolerance.

5. The nurse is caring for a client following an appendectomy. The client reports nausea and complains of surgical site pain at a 6 on a 0 to 10 scale. The client's employer is present in the room and states he is paying for the insurance and wants to know what pain medication has been prescribed by the physician. Which of the following is the appropriate nurse response?

A. Answer any questions the employer may have as he pays for the insurance.
B. Tell the employer his question is inappropriate and that the information is none of his business.
C. Explain to the employer that you cannot release private information and ask the employer to step out while you conduct your assessment of the client.
D. Ask the employer to leave and wait until the client returns home to visit.

Correct answer: C

Rationale: The appropriate nurse response is to explain to the employer that private information cannot be released and ask the employer to step out while conducting the assessment. This approach respects the client's privacy while still acknowledging the employer. The employer's payment for insurance does not grant rights to confidential information. Sharing information without permission violates the client's right to privacy under HIPAA. Option A is incorrect as it compromises the client's confidentiality by sharing private medical information. Option B is inappropriate and unprofessional as it does not address the situation respectfully. Option D is incorrect as it does not prioritize the client's immediate needs and assumes the client's consent without proper communication.