NCLEX-RN
NCLEX RN Exam Prep
1. A client has died approximately one hour ago. The nurse notes that the client's temperature has decreased in the last hour since their death. Which of the following processes explains this phenomenon?
- A. Rigor mortis
- B. Postmortem decomposition
- C. Algor mortis
- D. Livor mortis
Correct answer: C
Rationale: Algor mortis occurs after death when the body's circulation stops, and the client's temperature begins to fall. The client's temperature will drop by approximately 1.8 degrees per hour until it reaches room temperature. During algor mortis, the client's skin gradually loses its elasticity. Rigor mortis refers to the stiffening of the body after death due to chemical changes in the muscles. Postmortem decomposition is the breakdown of tissues after death. Livor mortis is the pooling of blood in the dependent parts of the body, causing a purple-red discoloration.
2. Which of the following diseases would require the nurse to wear an N95 respirator as part of personal protective equipment?
- A. Human immunodeficiency virus
- B. Clostridium difficile enterocolitis
- C. Vancomycin-resistant enterococcus
- D. Measles
Correct answer: D
Rationale: Infections that require airborne precautions necessitate the use of an N95 respirator, a type of mask that filters particles that are 5 micrograms or smaller. Illnesses that require airborne precautions include Measles, Varicella, Severe Acute Respiratory Syndrome (SARS), and tuberculosis. Measles is a highly contagious airborne disease caused by a virus. It can spread through respiratory droplets when an infected person coughs or sneezes. Wearing an N95 respirator helps prevent the nurse from inhaling these infectious particles. Human immunodeficiency virus, Clostridium difficile enterocolitis, and Vancomycin-resistant enterococcus do not require the use of an N95 respirator as they are not transmitted through the air but have other modes of transmission.
3. A 75-year-old client, hospitalized with a cerebral vascular accident (stroke), becomes disoriented at times and tries to get out of bed but is unable to ambulate without help. What is the most appropriate safety measure?
- A. Restrain the client in bed
- B. Ask a family member to stay with the client
- C. Check the client every 15 minutes
- D. Use a bed exit safety monitoring device
Correct answer: D
Rationale: Option D is the most appropriate safety measure in this scenario. Using a bed exit safety monitoring device allows the client to retain some independence while ensuring that the nursing staff is alerted when assistance is needed. This solution promotes client safety without compromising their autonomy. Option A, restraining the client in bed, can lead to increased agitation, confusion, and a loss of independence. Option B, asking a family member to stay with the client, shifts the responsibility away from the healthcare team. Option C, checking the client every 15 minutes, is not a sufficient safety measure as the client could attempt to get out of bed in the unobserved interval, risking falls and injury.
4. A 70-year-old man has a blood pressure of 150/90 mm Hg in a lying position, 130/80 mm Hg in a sitting position, and 100/60 mm Hg in a standing position. How should the nurse evaluate these findings?
- A. These readings are a normal response and attributable to changes in the patient's position.
- B. The change in blood pressure readings is called orthostatic hypotension.
- C. The blood pressure reading in the lying position is within normal limits.
- D. The change in blood pressure readings is considered within normal limits for the patient's age.
Correct answer: B
Rationale: The correct answer is, 'The change in blood pressure readings is called orthostatic hypotension.' Orthostatic hypotension is defined as a drop in systolic pressure of �20 mm Hg or �10 mm Hg drop in diastolic pressure that occurs with a quick change to a standing position. This condition is common in individuals on prolonged bed rest, older adults, those with hypovolemia, or taking specific medications. The blood pressure readings provided in the question (150/90 mm Hg lying, 130/80 mm Hg sitting, and 100/60 mm Hg standing) demonstrate a significant change in blood pressure with position changes, which is indicative of orthostatic hypotension. Choices A, C, and D are incorrect because the readings do not indicate a normal response or blood pressure within normal limits for the patient's age; rather, they suggest the presence of orthostatic hypotension.
5. While percussing over the liver of a patient, the nurse notices a dull sound. What should the nurse do?
- A. Consider this a normal finding
- B. Palpate this area for an underlying mass
- C. Reposition the hands and attempt to percuss in this area again
- D. Consider this finding as abnormal and refer the patient for additional treatment
Correct answer: A
Rationale: When percussing over relatively dense organs, such as the liver or spleen, a dull sound is a normal finding due to the organ's density. This occurs because the sound waves produced by tapping on the organ travel through the dense tissue, resulting in a dull sound. Therefore, the correct action for the nurse in this scenario is to consider a dull sound over the liver as a normal finding. Palpating for an underlying mass (Choice B) is not indicated based on the percussion finding alone. Repositioning the hands and repeating the percussion (Choice C) may not change the dull sound over the liver. Referring the patient for additional treatment (Choice D) without understanding the normal percussion findings over the liver would be premature. Thus, the most appropriate action is to interpret the dull sound as a normal finding.
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