how does shock usually progress

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. A patient with Meningitis is being treated with Vancomycin intravenously 3 times per day. The nurse notes that the urine output during the last 8 hours was 200mL. What is the nurse's priority action?

A. Check the patient's last BUN levels
B. Ask the patient to increase their fluid intake
C. Ask the physician to order a diuretic
D. Notify the physician of this finding

Correct answer: D

Rationale: Vancomycin is a nephrotoxic drug and can cause impaired renal perfusion, which would lead to decreased urine output. This is a serious adverse effect that should be promptly reported to the physician. Checking the patient's last BUN levels (Choice A) may provide additional information but does not address the urgency of the situation. Asking the patient to increase fluid intake (Choice B) may not be appropriate if the cause is related to Vancomycin toxicity. Ordering a diuretic (Choice C) without physician evaluation can exacerbate the issue, making notifying the physician (Choice D) the most critical action to take.

3. The healthcare provider is managing a 20 lbs (9 kg) 6-month-old with a 3-day history of diarrhea, occasional vomiting, and fever. Peripheral intravenous therapy has been initiated, with 5% dextrose in 0.33% normal saline with 20 mEq of potassium per liter infusing at 35 ml/hr. Which finding should be immediately reported to the healthcare provider?

A. 3 episodes of vomiting in 1 hour.
B. Periodic crying and irritability.
C. Vigorous sucking on a pacifier.
D. No measurable voiding in 4 hours.

Correct answer: D

Rationale: The critical finding that should be reported immediately to the healthcare provider is 'No measurable voiding in 4 hours.' This finding raises concerns about possible hyperkalemia, which can result from continued potassium administration and a decrease in urinary output. Hyperkalemia can lead to serious complications, including cardiac arrhythmias. The management of acute hyperkalemia involves interventions such as administering calcium to protect the heart, shifting potassium into cells, and enhancing potassium elimination from the body. The other choices do not indicate an urgent issue that requires immediate attention. Three episodes of vomiting in 1 hour can be concerning but may not be as immediately critical as the risk of hyperkalemia. Periodic crying and irritability are common in infants and may not indicate a severe complication. Vigorous sucking on a pacifier is a normal behavior in infants and does not signal a medical emergency.

4. The nurse is teaching parents about the treatment plan for a 2-week-old infant with Tetralogy of Fallot. While awaiting future surgery, the nurse instructs the parents to immediately report

A. Loss of consciousness
B. Feeding problems
C. Poor weight gain
D. Fatigue with crying

Correct answer: A

Rationale: The correct answer is 'Loss of consciousness.' While parents should report any concerning observations, they need to call the healthcare provider immediately if the infant experiences a loss of consciousness. This change in alertness may indicate anoxia, which can be life-threatening. Tetralogy of Fallot is a congenital heart defect characterized by four main features: pulmonic stenosis, ventricular septal defect, overriding aorta, and right ventricular hypertrophy. Surgery for Tetralogy of Fallot may be delayed or done in stages. Reporting loss of consciousness is crucial due to the potential seriousness of the condition. Feeding problems, poor weight gain, and fatigue with crying are important issues but do not require immediate reporting like loss of consciousness does.

5. What is the cause of meningitis that is fatal in half of the infected patients?

A. Virus
B. Bacteria
C. Fungus
D. Noninfectious agent

Correct answer: B

Rationale: Bacterial meningitis is caused by bacterial pathogens such as Streptococcus pneumoniae, Haemophilus influenzae, Listeria monocytogenes, and Neisseria meningitidis. These bacteria commonly lead to acute onset meningitis, presenting with symptoms like fever, stiff neck, and altered consciousness. The statement that bacterial meningitis is fatal in about 50% of cases is accurate, making it a serious and life-threatening condition. Viruses can also cause meningitis, but they are not typically associated with the high fatality rate seen in bacterial meningitis. Fungal meningitis is less common and usually affects individuals with weakened immune systems. Noninfectious agents do not cause meningitis.