a nurse is putting together a presentation on meningitis which of the following microorganisms has not been linked to meningitis in humans

NCLEX-RN

NCLEX RN Practice Questions Quizlet

1. A healthcare professional is putting together a presentation on meningitis. Which of the following microorganisms has not been linked to meningitis in humans?

A. S. pneumoniae
B. H. influenzae
C. N. meningitidis
D. Cl. difficile

Correct answer: D

Rationale: The correct answer is Cl. difficile. Clostridium difficile (C. diff) is not typically associated with meningitis in humans. This bacterium is known to cause severe diarrhea, usually as a result of antibiotic treatment. S. pneumoniae, H. influenzae, and N. meningitidis are all known to be causative agents of meningitis in humans. S. pneumoniae is a common cause of bacterial meningitis, especially in adults. H. influenzae, particularly type b (Hib), used to be a leading cause of meningitis in children before the introduction of the Hib vaccine. N. meningitidis is another significant pathogen responsible for causing meningitis, especially in young adults and adolescents.

2. A nurse frequently treats patients in the 72-hour period after a stroke has occurred. The nurse would be most concerned about which of these assessment findings?

A. INR is 3 seconds long
B. Heart rate is 110 beats per minute
C. Intracranial Pressure is 22 mmHg
D. Blood pressure is 140/80

Correct answer: C

Rationale: The nurse would be most concerned about the assessment finding of an Intracranial Pressure (ICP) reading of 22 mmHg in a patient 72 hours post-stroke. Elevated ICP can indicate increased risk of edema and further brain damage. A target ICP should ideally be maintained at less than or equal to 15-20 mmHg. While the other options may also be important to monitor, an elevated ICP poses a more immediate threat to the patient's neurological status and requires prompt attention.

3. Mr. C is brought to the hospital with severe burns over 45% of his body. His heart rate is 124 bpm and thready, BP 84/46, respirations 24/minute and shallow. He is apprehensive and restless. Which of the following types of shock is Mr. C at highest risk for?

A. Septic shock
B. Hypovolemic shock
C. Neurogenic shock
D. Cardiogenic shock

Correct answer: B

Rationale: Mr. C, who has severe burns over 45% of his body, is at highest risk for hypovolemic shock. Burns lead to a loss of plasma volume, reducing the circulating fluid volume and impairing perfusion to vital organs and extremities. In this scenario, the signs of shock, such as increased heart rate, low blood pressure, shallow respirations, and restlessness, indicate a state of hypovolemic shock due to significant fluid loss. Septic shock (choice A) is primarily caused by severe infections, neurogenic shock (choice C) results from spinal cord injuries, and cardiogenic shock (choice D) stems from heart failure. However, in this case, the presentation aligns most closely with hypovolemic shock due to the extensive burn injury and its effects on fluid volume and perfusion.

4. Which client is at highest risk for developing a pressure ulcer?

A. 23 year-old in traction for fractured femur
B. 72 year-old with peripheral vascular disease, who is unable to walk without assistance
C. 75 year-old with left sided paresthesia and is incontinent of urine and stool
D. 30 year-old who is comatose following a ruptured aneurysm

Correct answer: C

Rationale: Risk factors for pressure ulcers include: immobility, absence of sensation, decreased LOC, poor nutrition and hydration, skin moisture, incontinence, increased age, decreased immune response. This client has the greatest number of risk factors.

5. Clinical manifestations of asthma include:

A. Decreased expiratory time
B. Increased peak expiratory flow
C. Increased use of accessory muscles
D. Increased oxygen saturation

Correct answer: C

Rationale: Clinical manifestations of asthma include increased use of accessory muscles, increased expiratory time, increased peak expiratory flow, and decreased oxygen saturation. Choice A, 'Decreased expiratory time,' is incorrect because asthma typically presents with increased expiratory time due to airway obstruction. Choice B, 'Increased peak expiratory flow,' is incorrect as asthma commonly leads to decreased peak expiratory flow due to airway constriction. Choice D, 'Increased oxygen saturation,' is incorrect because asthma exacerbations often result in decreased oxygen saturation levels.