A nurse is assessing a client's pulmonary artery wedge pressure (PAWP). The nurse should recognize that an elevated PAWP indicates which of the following complications?
Hypotension
Hypovolemia
Cardiogenic shock
Left ventricular failure
The Correct Answer is D
Rationale:
A. Hypotension: Hypotension is typically associated with decreased preload and low PAWP rather than elevated values. An elevated PAWP reflects increased pressure in the left heart, which does not occur with simple hypotension alone.
B. Hypovolemia: Hypovolemia leads to decreased circulating blood volume, reducing preload and PAWP. It is typically marked by low filling pressures, not elevated wedge pressures.
C. Cardiogenic shock: Although cardiogenic shock can be associated with elevated PAWP due to poor cardiac output and fluid backup, it is not as specific a marker as left ventricular failure, which directly affects PAWP.
D. Left ventricular failure: Elevated PAWP reflects increased pressure in the left atrium and pulmonary circulation, which is a hallmark of left-sided heart failure. This elevation occurs because the failing left ventricle cannot efficiently pump blood forward.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is {"dropdown-group-1":"A","dropdown-group-2":"B"}
Explanation
Rationale for Correct Answers:
1. Condition: Mastitis
Mastitis is an infection of the breast tissue that commonly affects breastfeeding women. It often occurs when bacteria (usually Staphylococcus aureus) enter through a cracked or damaged nipple, allowing pathogens to travel into the milk ducts. Symptoms can start with nipple pain and breast tenderness, progressing to flu-like symptoms, localized redness, and fever if untreated.
2. Evidence: Cracked nipple
The client's report of nipple discomfort throughout feeding and visible crack noted on the left nipple are red flags for potential bacterial entry, placing her at high risk for mastitis. Cracked nipples are common in breastfeeding, especially when there is poor latch or prolonged feeding.
Rationale for Incorrect Options:
Endometritis: This is an infection of the uterine lining. However, this client is 2 weeks postpartum, denies abdominal pain, and has normal lochial progression (whitish-yellow discharge = lochia alba). Her uterus is no longer palpable, indicating appropriate involution. No signs of fever, foul-smelling discharge, or uterine tenderness are noted.
Perineal hematoma: This would present with significant perineal pain, swelling, and possibly bluish discoloration. This client reports only mild perineal discomfort (2/10), likely related to normal healing from her episiotomy.
Group B streptococcus: The client tested negative for Group B Streptococcus. Moreover, GBS is not directly related to cracked nipples or mastitis.
Large for gestational age newborn: While the newborn was indeed LGA, this mainly increases the risk for perineal trauma or shoulder dystocia, not directly mastitis.
Correct Answer is B
Explanation
Rationale:
A. "You should expect your blisters to last up to three weeks.": Herpes zoster lesions typically last 7 to 10 days, with crusting and healing often occurring within 2 weeks. While some cases may extend slightly longer, stating "up to three weeks" may overgeneralize and mislead.
B. "Antiviral medications are most effective if taken within the first 72 hours of symptoms.": Antiviral drugs like acyclovir or valacyclovir are most effective when initiated within 72 hours of symptom onset. Early treatment reduces severity, duration, and the risk of complications such as postherpetic neuralgia.
C. "People who have had chicken pox are at a decreased risk for herpes zoster.": Herpes zoster occurs due to reactivation of the varicella-zoster virus, which remains dormant after chickenpox. Therefore, individuals who have had chickenpox are actually at increased risk.
D. "Severe pain after the blisters are gone is less common in older adults.": Older adults are more likely to experience postherpetic neuralgia, a complication involving persistent nerve pain after lesions resolve. The risk and severity of this pain increase with age, not decrease.
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