Which statement is NOT correct?

"Sharing needles is a big risk factor for hepatitis."

"Chronic hepatitis increases the risk for liver cancer."

"Newborns should receive the Hepatitis B vaccine."

"Health care workers should get a Hepatitis C vaccine."

Answer and Explanation

The Correct Answer is D

A. "Sharing needles is a big risk factor for hepatitis.": Percutaneous exposure to contaminated blood is a primary transmission route for Hepatitis B and C viruses. Sharing injection equipment allows for the direct inoculation of viral particles into the bloodstream of a susceptible host. This remains a significant public health challenge in preventing bloodborne pathogen spread.

B. "Chronic hepatitis increases the risk for liver cancer.": Persistent inflammation from Hepatitis B or C leads to progressive hepatic fibrosis and eventually cirrhosis. This chronic cellular damage and regeneration cycle predisposes hepatocytes to malignant transformation into hepatocellular carcinoma. Longitudinal monitoring of these patients for oncological changes is a standard clinical requirement.

C. "Newborns should receive the Hepatitis B vaccine.": Universal neonatal immunization is the standard of care to prevent vertical transmission and early childhood acquisition of the virus. The first dose is typically administered within 24 hours of birth to ensure long-term immunological protection. This strategy has drastically reduced the global prevalence of chronic HBV infection.

D. "Health care workers should get a Hepatitis C vaccine.": Currently, there is no commercially available vaccine for the prevention of the Hepatitis C virus. While vaccines exist for Hepatitis A and B, Hepatitis C prevention relies entirely on standard precautions and post-exposure protocols. This statement is scientifically inaccurate because the vaccine technology does not yet exist.

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Correct Answer is D

Explanation

A. Fluid in the knee joint: A joint effusion typically presents with swelling, fluctuance upon palpation, and a positive ballottement test for the patella. While it causes discomfort and limited range of motion, it does not produce a distinct grating sound. It involves fluid accumulation rather than mechanical friction.

B. A loose tendon: This is not a standard clinical finding as tendons usually undergo rupture, strain, or inflammation (tendonitis). A loose tendon would cause joint instability or weakness rather than an audible crunching sound upon kneeling. It does not explain the mechanical noise described by the patient.

C. A bone spur: Osteophytes contribute to joint degeneration and pain in osteoarthritis but do not exclusively produce the characteristic audible crunching. While spurs represent structural damage, the sound itself is a result of the rubbing of surfaces. The question asks for the name of the sound.

D. Crepitation: This term describes the palpable or audible crunching and grating sound produced when roughened articular surfaces rub together. It is a classic clinical sign of osteoarthritis as the protective cartilage between the femur and patella diminishes. It indicates mechanical friction between the weight-bearing surfaces.

Correct Answer is []

Explanation

Potential Condition: Stroke: The combination of a sudden fall, "feeling funny," confused mental status, and slurred speech are classic indicators of a cerebrovascular accident. Her use of aspirin suggests an underlying cardiovascular history, increasing her risk for an ischemic or hemorrhagic event. Rapid identification of these neurological deficits is critical for improving clinical outcomes.

Actions to Take: Call 911; BE FAST stroke screen: Calling emergency services is the priority to ensure the patient reaches a stroke-certified facility within the thrombolytic window. The BE FAST tool (Balance, Eyes, Face, Arm, Speech, Time) is the standard pre-hospital assessment to quantify neurological impairment. These actions prioritize life-saving intervention over non-urgent chores or rest.

Parameters to Monitor: Level of consciousness; Grip strength: Monitoring the level of consciousness allows the nurse to detect rising intracranial pressure or worsening cerebral ischemia. Assessing grip strength provides a quantifiable measure of motor deficit and lateralization of the stroke. These parameters are specific to the neurological emergency described in the clinical scenario.

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Which statement is NOT correct?

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Naxlex Comprehensive Predictor Exams

The patient states, "I hear a crunching, grating sound when I kneel." What is the likely cause?

Correct Answer is D

Explanation

Correct Answer is []

Explanation

The patient's posture is stooped and he walks with shuffling steps. Starting, stopping, and turning are difficult. Which gait pattern is likely?

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