Section 10: Labs and ancillary testing

Question 1

10.1 Given abnormal blood gas results, identify the causative agent.

Answer 1

10.1 Given abnormal blood gas results, identify the causative agent.

Question 2

10.2 Given an exposure, calculate and interpret the anion gap, and identify the causative agent.

Answer 2

10.2 Given an exposure, calculate and interpret the anion gap, and identify the causative agent.

Question 3

10.3 Given a patient with coagulopathy, identify the causative agent.

Answer 3

10.3 Given a patient with coagulopathy, identify the causative agent.

Question 4

10.4 Given abnormal electrolytes, identify the causative agent.

Answer 4

10.4 Given abnormal electrolytes, identify the causative agent.

Question 5

10.5 Given results of a urine drug screen, identify potential false positive or false negatives.

Answer 5

1. Seleligine false + for amphetamines (metabolized to amphetamine)
2. Buproprion (Wellbutrin) false + for Amphetamine
3. Quetiapine (Seroquel) false + for TCA
4. Flexeril (cyclobenzaprine) false + for TCA (structurally similar)
5. Ketamine false + for PCP (phencyclidine)
6. Clonazepam and Lorazepam may have false – for benzo UDS
7. Dextromethorphan false + PCP

Question 6

10.6 Given a patient with a wide QRS interval on an ECG, identify causative agents.

Answer 6

10.6 Given a patient with a wide QRS interval on an ECG, identify causative agents.

Question 7

10.7 Given an exposure, identify which lab or ancillary test(s) should be analyzed.

Answer 7

10.7 Given an exposure, identify which lab or ancillary test(s) should be analyzed.