NCLEX-RN
Exam Cram NCLEX RN Practice Questions
1. How does shock typically progress?
- A. Compensated to hypotensive shock in hours and hypotensive shock to cardiac arrest in minutes
- B. Compensated to hypotensive shock in minutes and hypotensive shock to cardiac arrest in hours
- C. Hypotensive to compensated shock in hours and compensated shock to cardiac arrest in minutes
- D. Hypotensive to compensated shock in minutes and compensated shock to cardiac arrest in hours
Correct answer: A
Rationale: Shock typically progresses from a compensated state to hypotensive shock over a period of hours. In the compensated phase, the body is trying to maintain perfusion. It is crucial to identify and intervene during this phase to prevent progression to hypotensive shock, where blood pressure drops significantly. If not promptly managed, hypotensive shock can rapidly deteriorate into cardiac arrest in minutes due to inadequate perfusion to vital organs. Choices B, C, and D are incorrect as they do not follow the typical progression of shock stages as seen in clinical practice. Understanding the stages of shock and their timeframes is crucial for early recognition and appropriate intervention to prevent further deterioration.
2. During a physical exam, a healthcare professional assisting a client suspected of having meningitis bends the client's leg at the hip to a 90-degree angle. When attempting to extend the leg at the knee, the client experiences severe pain. What type of test is being performed?
- A. Brudzinski's sign
- B. Romberg's sign
- C. Kernig's sign
- D. Babinski's sign
Correct answer: C
Rationale: The healthcare professional is performing Kernig's sign, a test for meningeal irritation often seen in meningitis cases. Kernig's sign involves bending the client's leg at a 90-degree angle at the hip and then attempting to extend the leg at the knee. Severe pain during this maneuver indicates a positive Kernig's sign, suggesting irritation of the meningeal membranes. Brudzinski's sign involves flexing the neck causing involuntary flexion of the hips and knees; Romberg's sign assesses balance and proprioception; Babinski's sign checks for abnormal reflexes in the foot.
3. The patient's symptoms, lack of antibodies for hepatitis, and the abrupt onset of symptoms suggest toxic hepatitis, which can be caused by commonly used over-the-counter drugs such as acetaminophen (Tylenol). Travel to a foreign country and a history of IV drug use are risk factors for viral hepatitis. Corticosteroid use does not cause the symptoms listed.
- A. Hemoglobin
- B. Temperature
- C. Activity level
- D. Albumin level
Correct answer: D
Rationale: The low oncotic pressure caused by hypoalbuminemia is a major pathophysiologic factor in the development of edema. In this case, monitoring the albumin level is crucial to assess the patient's fluid balance and potential for edema. While hemoglobin, temperature, and activity level are important parameters to monitor in a patient's assessment, they are not directly associated with the patient's current symptoms of toxic hepatitis and edema development. Therefore, the correct choice is the albumin level.
4. A 34-year-old female has recently been diagnosed with an autoimmune disease. She has also recently discovered that she is pregnant. Which of the following is the only immunoglobulin that will provide protection to the fetus in the womb?
- A. IgA
- B. IgD
- C. IgE
- D. IgG
Correct answer: D
Rationale: IgG is the only immunoglobulin that can cross the placental barrier, providing passive immunity to the fetus. About 70-80% of the immunoglobulins in the blood are IgG. Specific IgG antibodies are generated after an initial exposure to an antigen, offering long-term protection against microorganisms. IgG antibodies are critical for protecting the fetus as they can be rapidly reproduced upon re-exposure to the same antigen. IgA is primarily found in mucosal areas, IgD is involved in antigen recognition, and IgE is associated with allergic reactions, but they do not provide the same level of protection to the fetus as IgG.
5. A patient asks a nurse administering blood how long red blood cells live in the body. What is the correct response?
- A. The life span of RBC is 45 days
- B. The life span of RBC is 60 days
- C. The life span of RBC is 90 days
- D. The life span of RBC is 120 days
Correct answer: D
Rationale: The correct answer is that red blood cells have a lifespan of 120 days in the body. This allows for efficient oxygen transport throughout the circulatory system. Choices A, B, and C are incorrect because the lifespan of red blood cells is actually 120 days. Understanding the lifespan of red blood cells is crucial in assessing various conditions related to blood cell production and turnover.
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