which of the following is the most common cause of acute renal failure

NCLEX-PN

Kaplan NCLEX Question of The Day

1. What is the most common cause of acute renal failure?

A. Shock
B. Nephrotoxic drugs
C. Enlarged prostate
D. Diabetes

Correct answer: A

Rationale: The correct answer is 'Shock.' Acute renal failure is commonly caused by inadequate blood flow to the kidneys, which can occur in cases of shock. This leads to decreased kidney function and potential kidney damage. While nephrotoxic drugs can also cause acute renal failure, shock is the primary and most common cause. An enlarged prostate may lead to obstructive uropathy but is not the most prevalent cause of acute renal failure. Diabetes is typically associated with chronic kidney disease rather than acute renal failure.

2. 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.

3. A client delivered a term male infant four hours ago. The infant was stillborn. Which room assignment would be most appropriate for this client?

A. Request a private room on the GYN floor
B. Assign her to a private room on the postpartum unit
C. Discharge her home as soon as her condition is stable
D. Room her with another client who experienced a pregnancy loss

Correct answer: A

Rationale: In this situation, the most appropriate room assignment for the client who delivered a stillborn infant would be to request a private room on the GYN floor. This client needs privacy to grieve, and having a private space allows for family members to offer support. Placing her in a GYN unit ensures that she is away from the maternity unit's sights and sounds, which could be painful reminders for her. Assigning her to a postpartum unit may cause distress due to the presence of other mothers and newborns. Discharging her home too early may not allow her sufficient time for emotional and physical recovery. Rooming her with another client who experienced a pregnancy loss may not provide the necessary privacy and space she needs for her emotional well-being.

4. Which of the following is not typically considered one of the main mechanisms of Type II Diabetes treatment?

A. Medications
B. Nutrition
C. Increased activity
D. Continuous Insulin

Correct answer: D

Rationale: Continuous Insulin is not typically considered one of the main mechanisms for treating Type II Diabetes. While medications, nutrition, and increased activity play crucial roles in managing Type II Diabetes, continuous insulin therapy is more common in Type I Diabetes or in specific cases of Type II Diabetes where other treatments are ineffective. Therefore, the correct answer is Continuous Insulin. Choices A, B, and C are mainstays in the treatment of Type II Diabetes, making them incorrect answers.

5. The nurse is caring for a client complaining of intense headaches with increasing pain for the past one month. An MRI is ordered. In reviewing the client's information, which piece of information is of concern?

A. Allergy to shellfish
B. Has a cardiac pacemaker
C. A diabetic
D. No IV access

Correct answer: B

Rationale: The correct answer is 'Has a cardiac pacemaker.' If a client with a cardiac pacemaker undergoes an MRI, the magnetic field can interfere with the pacemaker's function, leading to serious complications or even death. It is crucial to ensure that the pacemaker is compatible with MRI imaging or to consider alternative imaging modalities. The other choices, such as 'Allergy to shellfish,' 'A diabetic,' and 'No IV access,' are not direct contraindications for an MRI scan and do not pose the same level of risk as having a cardiac pacemaker.