A patient with a heart murmur and fever has three sets of blood cultures, taken hours apart, all growing the same Streptococcus species. What does this suggest?
APersistent bacteremia, as in infective endocarditis
BA urinary tract infection that has spread to the skin
CA normal finding in patients with heart murmurs
DContamination of all three samples during collection
3溶液
1.护理学基础
答案: C · Give each medicine separately and flush with water between them
为什么是这个答案
Each drug is prepared and given separately, with water flushes before, between and after, to prevent tube blockage and drug interactions. A pharmacist advises on suitable forms.
答案
C · Give each medicine separately and flush with water between them
2.护理学基础
答案: B · Loop diuretics cause potassium loss, and low levels can cause arrhythmias
为什么是这个答案
Furosemide increases potassium loss in the urine. Hypokalaemia causes muscle weakness and cardiac arrhythmias, so the result is reported and replacement considered.
答案
B · Loop diuretics cause potassium loss, and low levels can cause arrhythmias
3.临床护理
答案: D · Check the patient for injuries before moving them
为什么是这个答案
After a fall, the patient is assessed first, including airway, breathing, circulation, head injury and possible fractures, before deciding how to move them safely. The fall is then reported and the care plan reviewed.
答案
D · Check the patient for injuries before moving them
Palpating a Wilms tumor can rupture the capsule and spread cancer cells. A sign is often put on the bed to warn staff not to palpate the abdomen.
答案
D · Do not palpate the abdomen
15.感染控制与患者安全
答案: A · Hold it away from the uniform and place it straight into a linen bag
为什么是这个答案
Soiled linen is rolled up, held away from the uniform and placed directly into a laundry bag at the bedside. Shaking linen spreads organisms into the air, and the floor is a contaminated surface.
答案
A · Hold it away from the uniform and place it straight into a linen bag
16.感染控制与患者安全
答案: D · Explain why it is needed, use other ID methods per policy and document
为什么是这个答案
The nurse explains how the band prevents errors. If the patient still refuses, the nurse follows policy for alternative identification using two identifiers, informs the team and documents it.
答案
D · Explain why it is needed, use other ID methods per policy and document
答案: A · Persistent bacteremia, as in infective endocarditis
为什么是这个答案
Several positive cultures with the same organism, taken at different times, show continuous bacteremia, typical of infective endocarditis. Echocardiography is done and prolonged IV antibiotics are started. Contamination usually affects only one bottle.核对依据:Blood culture · MedlinePlus (NIH) (2025)
答案
A · Persistent bacteremia, as in infective endocarditis