Werkblad Laboratoriumwaarden en elektrolyten met antwoorden

In a healthy adult, the CSF glucose is usually about what proportion of the blood glucose?

1. AAbout one tenth (10%)
2. BAbout two-thirds (60%)
3. CExactly the same (100%)
4. DAbout double (200%)

Wat is een typisch referentiebereik voor serumosmolaliteit?

1. AOngeveer 275–295 mOsm/kg
2. BOngeveer 400–500 mOsm/kg
3. COngeveer 50–100 mOsm/kg
4. DOngeveer 135–145 mOsm/kg

What is the main role of platelets?

1. ATo carry oxygen and carbon dioxide in the blood
2. BTo break down old red cells in the spleen
3. CTo produce antibodies against bacteria and viruses
4. DTo form a plug at the site of vessel injury

Which blood collection practice helps prevent hemolysis of the sample?

1. ALeaving the tourniquet on for at least 3 minutes
2. BUsing the smallest needle available for every patient
3. CForcing blood quickly through a needle into the tube
4. DGently inverting the tubes instead of shaking them

Een patiënt heeft een hematocriet van 54%, een hoge BUN en een soortelijk gewicht van de urine van 1,034. Waar wijst dit patroon op?

1. AUitdroging met hemoconcentratie
2. BNierfalen met verdunde urine
3. CAcuut bloedverlies met verdunning
4. DOvervulling

A patient's levothyroxine dose was changed today. When is the TSH usually rechecked?

1. AAfter about 1 year
2. BAfter about 6–8 weeks
3. CAfter about 24 hours
4. DAfter about 3 days

A patient admitted with heavy alcohol use and malnutrition has a glucose of 52 mg/dL (2,9 mmol/L) and low magnesium. Which prescribed treatment should be given before the IV glucose?

1. AIV thiamine
2. BIV potassium
3. COral iron
4. DIV insulin

A patient has fever, chills, flank pain and costovertebral angle tenderness. Urinalysis shows many white cells and white cell casts. Which condition is most likely?

1. ANephrotic syndrome
2. BAcute pyelonephritis
3. CSimple cystitis
4. DGlomerulonephritis