This article is an excerpt from the Shortform summary of "The Checklist Manifesto" by Atul Gawande. Shortform has the world's best summaries of books you should be reading.
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What are the advantages of checklists? How can they make you more efficient and less liable to make careless mistakes at work and at home?
We’ll cover the benefits it checklists and look at examples of the advantages of checklists in the worlds of aviation and medicine.
The Advantages of Checklists
In complex environments, checklists can help to prevent failure by addressing two problems:
Advantage of Checklists #1
1) Our memory and our attention to detail fail when we’re distracted by more urgent matters. For instance, if you’re a nurse, you might forget to take a patient’s pulse when she’s throwing up, a family member is asking questions, and you’re being paged.
Forgetfulness and distraction are especially risky in what engineers call all-or-none processes, where if you miss one key thing, you fail at the task. For instance, if you go to the store to buy ingredients for a cake and forget to buy eggs, you can’t make the recipe because it wouldn’t work without eggs. The consequences are more serious if a pilot misses a step during take-off or a doctor misses the key symptom. Regardless of the situation, aiding your memory is an advantage of checklists.
Advantage of Checklists #2
2) People have a tendency to skip steps even when they remember them. In complex processes, certain steps don’t always matter, so people may play the odds and skip them. For instance, if measuring all four of a patient’s vital signs (pulse, blood pressure, temperature, and respiration) only rarely detects a problem, you might become lax about checking everything.
Checklists protect against such failures because they remind you of the minimum necessary steps by spelling them out. They allow you to verify each step while also establishing and instilling a performance standard. This is another benefit of checklists.
Boeing Discovers the Benefits of Checklists
Let’s look at an example of how to apply the advantages of checklists in the professional world.
In 1935, the Army Air Corps asked airplane manufacturers for a new long-range bomber. Boeing’s Model 299, which exceeded specifications, was favored over models by Martin and Douglas. However, during a flight competition held by the Army in Dayton, Ohio, the Boeing model stalled at 300 feet and crashed, killing two of five crew members.
The plane was much more complicated than previous aircraft — the pilot had more steps to follow and forgot to release a new locking mechanism on the elevator and rudder controls. After the accident, a newspaper called the new model “too much airplane for one man to fly.” The Army Air Corps chose Douglas’s smaller design, and Boeing took a big financial hit.
Nonetheless, the Army bought a few Model 299s as test planes and a group of test pilots studied how to prevent future pilot errors. Instead of focusing on requiring longer training, they came up with a pilot’s checklist. Flying up to that point had not been especially complicated, but flying the new plane required too many details to be left to memory.
The test pilots made their checklist simple, clear, and concise — it fit on an index card — with step-by-step checks for takeoff, landing, and taxiing. Using the checklist, pilots went on to fly the bomber, which became the B-17 Flying Fortress, 1.8 million miles without incident. The Army ordered 13,000, and the bomber gave the allies a big air advantage in World War II.
Checklists have become essential in aviation, averting problems and accidents. In notebook and electronic forms, they’re a standard and crucial part of pilot training and aircraft operation.
These are some of the uses and advantages of checklists.
Medicine: The Advantages of Checklists
In medicine, the four vital signs (pulse, blood pressure, temperature, and respiration) have become an important regular check on how a patient is doing. Missing one can be dangerous.
Medical practitioners didn’t consistently measure and record the four vital signs until the 1960s, when nurses in Western hospitals designed patient charts that included them. Checking them off on a chart was a way of ensuring that in a busy and demanding environment, they wouldn’t forget to make the checks every six hours. Hospitals have since added a fifth vital sign, the patient’s pain level on a scale of one to ten.
In 2001, a critical care specialist at Johns Hopkins Hospital, Peter Pronovost, decided to try a checklist for doctors, targeting a common problem in ICUs: central line infections. A central line is a type of catheter placed in a large vein that allows multiple IV fluids to be given and blood to be drawn. Pronovost’s checklist listed the steps for avoiding infections:
- Wash your hands with soap.
- Clean the patient’s skin with antiseptic.
- Put a sterile drape over the patient.
- Wear a mask, hat, sterile gown, and gloves.
- Put a sterile dressing over the insertion line.
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- How checklists save millions of lives in healthcare and flights
- The two types of checklists that matter
- How to create your own revolutionary checklist
