Mobile phones are low power, rugged, cheap, and well accepted in Zambia. I think I'd be looking at how much of the electronic medical record keeping I could push onto very basic mobile phone-based services such as SMS, MMS, voice/voice recording, and/or (for example) very lightweight Java ME applications (using MQTT probably which is free, bidirectional, low power, secure, and extremely bandwidth efficient/tolerant). Voice input, for example, is very fast -- faster than writing/typing at the point of service -- and labor is cheap to take dictation locally or remotely. A cheap camera phone can take decent pictures of body parts and what they look like. Patients with mobile phones -- many of them -- can input their own histories for registration (via a Java ME or WAP app probably), or somebody remote can call them who can then key in the history via Q&A -- even before they get to the clinic. Get an IBM "Watson" (or connect to one in the "cloud") for diagnoses. And so on. Think of how to deliver as many and as much of the business processes via mobile feature phones and (for the clinics) slightly more advanced tablets with very lightweight protocols and near-ubiquitous services. I agree with the commenters upthread: stay away from the paper if at all possible. If there is any paper, let them use the manual typewriters they already might have and then have a "scanning station" with a camera phone on a tripod sort of thing to get the paper "into the system" immediately.
As for freezer labeling, how about not labeling at all in the field? Get tubes/containers pre-marked "at the factory" with unique sequential barcodes and serial numbers, and then associate that tube with the patient electronically when the sample is collected. The technician would also jot down the patient's assigned code using a simple freezer-compatible pen/marker. Again, a simple mobile phone with a camera would be able to scan the barcode on the tube and look up the patient code (or register the patient to that tube). The code could be something as simple as the patient's mobile phone number concatenated with a couple alphanumerics: initials, date of birth, or something else. (This would depend on the cultural context of course. It should be short, unique, avoid characters that can be mixed up like 0 and O, and have a check character embedded to avoid false match errors.)
2. Introduce 2 and 5 dollar coins and a 500 dollar bill;
3. Substantially increase production of the dollar and half dollar coins;
4. If the Republicans in Congress fail to raise the debt ceiling without conditions, the U.S. Mint would issue one or more 1 trillion dollar coins which are deposited with the Federal Reserve. These coins would feature the likeness of former President Ronald Reagan on one side and a quotation from the 14th Amendment to the U.S. Constitution on the other: "The validity of the public debt of the United States, authorized by law, including debts incurred for payment of pensions and bounties for services in suppressing insurrection or rebellion, shall not be questioned."
Casualties in the withdrawals would be Lincoln (penny and 5 dollar bill), Jefferson (nickel and 2 dollar bill), and Washington (1 dollar bill). Consequently Jefferson would appear on the new 2 dollar coin, and Lincoln would appear on the new 5 dollar coin. Washington already appears on the quarter, and he'd stay there. The dime (FDR) and half dollar coin (JFK) would also remain the same. The presidential series of dollar coins would continue, but the existing Sacagawea dollar coin would be issued concurrently and thereafter as planned. The new 500 dollar bill would depict Martin Luther King on one side and the Apollo 11 Moon Landing on the other. It would also be physically larger than the other denominations, and it would be distinctly, tastefully, vibrantly multicolored. Hamilton would remain on the 10 dollar bill, Andrew Jackson on the 20 dollar bill, Grant on the 50 dollar bill, and Franklin on the 100 dollar bill.