解答つき検査値と電解質ワークシート

How does dehydration usually affect the hematocrit?

1. AIt raises it
2. BIt has no effect
3. CIt lowers it
4. DIt makes it zero

A patient on warfarin asks what an INR of 2.0 means. Which explanation is best?

1. AYour warfarin dose is twice what it should be
2. BYou have twice the normal number of platelets
3. CYour blood takes about twice as long as normal to clot
4. DYour blood clots about twice as fast as is normal

バンコマイシンのトラフ値は、いつ採血しますか？

1. A投与の時刻に関係なく、都合のよい時間帯のいつでも
2. B次回投与の直前、通常は 30 分以内
3. C点滴が終わった直後
4. D点滴開始の 2 時間後

A patient with a low clinical probability of deep vein thrombosis has a normal (negative) D-dimer. What is the best interpretation?

1. AA pulmonary embolism is now certain to be present
2. BA DVT is confirmed and anticoagulation is needed
3. CA DVT is unlikely and can usually be ruled out
4. DThe test is useless and should always be ignored

A stool test for Clostridioides difficile is ordered. Which sample is appropriate?

1. AA rectal swab from a patient with constipation
2. BAny stool after a laxative dose
3. CAn unformed (liquid or soft) stool
4. DA formed, hard stool sample

敗血症が疑われる患者の血液培養は、いつ採取すべきですか？

1. A抗菌薬の最初の 3 回の投与後
2. B発熱が 3 日を超えて続く場合のみ
3. C抗菌薬は結果に影響しないので、いつでも
4. D最初の抗菌薬の前に、投与をあまり遅らせずに

A patient has a positive hepatitis C antibody (anti-HCV) test. What is the most appropriate next step?

1. AGive hepatitis C vaccine to prevent further infection
2. BRepeat the antibody test, as a positive test is always false
3. CTell the patient they definitely have chronic hepatitis C
4. DTest for HCV RNA to find out whether infection is current

A patient has fatigue, weight loss, darkening of the skin and low blood pressure. Results: sodium 130 mEq/L, potassium 5.6 mEq/L. Which test pattern would confirm primary adrenal insufficiency (Addison disease)?

1. AHigh cortisol with a high ACTH
2. BHigh cortisol with a low ACTH
3. CLow cortisol with a low ACTH
4. DLow cortisol with a high ACTH