答案: C · Hold the next dose and report for an urgent lithium level
为什么是这个答案
Vomiting, diarrhea and a coarse tremor suggest lithium toxicity. The nurse holds the dose and reports so a serum level can be checked; low salt or fluid intake raises lithium levels further.
答案
C · Hold the next dose and report for an urgent lithium level
答案: D · Covering the site with a sleeve or using hand mitts with supervision
为什么是这个答案
Covering the line, keeping it out of view and using mitts while observing the patient can stop pulling without fully restricting movement. Restraints and sedation are used only if these fail.
答案
D · Covering the site with a sleeve or using hand mitts with supervision
16.感染控制与患者安全
答案: B · Poor tissue perfusion, a sign of sepsis-related shock
为什么是这个答案
When tissues are poorly perfused, cells switch to anaerobic metabolism and lactate rises. In a patient with infection and hypotension, this points to septic shock and needs urgent treatment.
答案
B · Poor tissue perfusion, a sign of sepsis-related shock
17.实验室检查值与电解质
答案: D · Magnesium
为什么是这个答案
Loop diuretics block the Na-K-2Cl transporter in the loop of Henle, where much magnesium and calcium are also reabsorbed. They therefore commonly cause hypokalemia and hypomagnesemia, and they can raise uric acid and bicarbonate.
答案
D · Magnesium
18.实验室检查值与电解质
答案: A · Amiodarone-induced hypothyroidism
为什么是这个答案
Amiodarone is rich in iodine and can cause either hypothyroidism or hyperthyroidism. A high TSH with a low free T4 shows primary hypothyroidism, so thyroid function is monitored before and during therapy; liver tests are monitored too.